Home / 84,927.60-127,391.40-55,403.10

Finding the Fourth Proportional to 84,927.60, 127,391.40 and 55,403.10

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Solution

The fourth proportional to 84,927.60, 127,391.40 and 55,403.10 is: 83,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,927.60 : 127,391.40 = 55,403.10 : x
  2. Step 2: Convert to fraction form
    84,927.60/127,391.40 = 55,403.10/x
  3. Step 3: Cross multiply
    84,927.60x = 127,391.40 × 55,403.10
  4. Step 4: Simplify right side
    84,927.60x = 7,057,878,473.34
  5. Step 5: Solve for x
    x = 7,057,878,473.34/84,927.60
  6. Step 6: Final answer
    x = 83,104.65

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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.