Home / 57,996.20-86,980.10-42,385.14

Finding the Fourth Proportional to 57,996.20, 86,980.10 and 42,385.14

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Solution

The fourth proportional to 57,996.20, 86,980.10 and 42,385.14 is: 63,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,996.20 : 86,980.10 = 42,385.14 : x
  2. Step 2: Convert to fraction form
    57,996.20/86,980.10 = 42,385.14/x
  3. Step 3: Cross multiply
    57,996.20x = 86,980.10 × 42,385.14
  4. Step 4: Simplify right side
    57,996.20x = 3,686,663,503.79
  5. Step 5: Solve for x
    x = 3,686,663,503.79/57,996.20
  6. Step 6: Final answer
    x = 63,567.33

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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.