Home / 52,123.66-78,185.50-20,951.62

Finding the Fourth Proportional to 52,123.66, 78,185.50 and 20,951.62

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Solution

The fourth proportional to 52,123.66, 78,185.50 and 20,951.62 is: 31,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,123.66 : 78,185.50 = 20,951.62 : x
  2. Step 2: Convert to fraction form
    52,123.66/78,185.50 = 20,951.62/x
  3. Step 3: Cross multiply
    52,123.66x = 78,185.50 × 20,951.62
  4. Step 4: Simplify right side
    52,123.66x = 1,638,112,885.51
  5. Step 5: Solve for x
    x = 1,638,112,885.51/52,123.66
  6. Step 6: Final answer
    x = 31,427.43

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.