Home / 71,150.50-98,188.65-39,320.14

Finding the Fourth Proportional to 71,150.50, 98,188.65 and 39,320.14

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Solution

The fourth proportional to 71,150.50, 98,188.65 and 39,320.14 is: 54,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.50 : 98,188.65 = 39,320.14 : x
  2. Step 2: Convert to fraction form
    71,150.50/98,188.65 = 39,320.14/x
  3. Step 3: Cross multiply
    71,150.50x = 98,188.65 × 39,320.14
  4. Step 4: Simplify right side
    71,150.50x = 3,860,791,464.41
  5. Step 5: Solve for x
    x = 3,860,791,464.41/71,150.50
  6. Step 6: Final answer
    x = 54,262.32

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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.