Home / 52,123.32-78,184.98-12,680.46

Finding the Fourth Proportional to 52,123.32, 78,184.98 and 12,680.46

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Solution

The fourth proportional to 52,123.32, 78,184.98 and 12,680.46 is: 19,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,123.32 : 78,184.98 = 12,680.46 : x
  2. Step 2: Convert to fraction form
    52,123.32/78,184.98 = 12,680.46/x
  3. Step 3: Cross multiply
    52,123.32x = 78,184.98 × 12,680.46
  4. Step 4: Simplify right side
    52,123.32x = 991,421,511.49
  5. Step 5: Solve for x
    x = 991,421,511.49/52,123.32
  6. Step 6: Final answer
    x = 19,020.69

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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.