Home / 71,864.31-99,172.75-40,035.26

Finding the Fourth Proportional to 71,864.31, 99,172.75 and 40,035.26

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Solution

The fourth proportional to 71,864.31, 99,172.75 and 40,035.26 is: 55,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.31 : 99,172.75 = 40,035.26 : x
  2. Step 2: Convert to fraction form
    71,864.31/99,172.75 = 40,035.26/x
  3. Step 3: Cross multiply
    71,864.31x = 99,172.75 × 40,035.26
  4. Step 4: Simplify right side
    71,864.31x = 3,970,406,831.17
  5. Step 5: Solve for x
    x = 3,970,406,831.17/71,864.31
  6. Step 6: Final answer
    x = 55,248.66

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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.