Home / 85,897.28-118,503.24-57,612.08

Finding the Fourth Proportional to 85,897.28, 118,503.24 and 57,612.08

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Solution

The fourth proportional to 85,897.28, 118,503.24 and 57,612.08 is: 79,481.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,897.28 : 118,503.24 = 57,612.08 : x
  2. Step 2: Convert to fraction form
    85,897.28/118,503.24 = 57,612.08/x
  3. Step 3: Cross multiply
    85,897.28x = 118,503.24 × 57,612.08
  4. Step 4: Simplify right side
    85,897.28x = 6,827,217,550.62
  5. Step 5: Solve for x
    x = 6,827,217,550.62/85,897.28
  6. Step 6: Final answer
    x = 79,481.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.