Home / 56,972.13-85,480.08-40,121.31

Finding the Fourth Proportional to 56,972.13, 85,480.08 and 40,121.31

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Solution

The fourth proportional to 56,972.13, 85,480.08 and 40,121.31 is: 60,197.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,972.13 : 85,480.08 = 40,121.31 : x
  2. Step 2: Convert to fraction form
    56,972.13/85,480.08 = 40,121.31/x
  3. Step 3: Cross multiply
    56,972.13x = 85,480.08 × 40,121.31
  4. Step 4: Simplify right side
    56,972.13x = 3,429,572,788.50
  5. Step 5: Solve for x
    x = 3,429,572,788.50/56,972.13
  6. Step 6: Final answer
    x = 60,197.38

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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.