Home / 74,831.31-103,266.50-40,839.53

Finding the Fourth Proportional to 74,831.31, 103,266.50 and 40,839.53

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Solution

The fourth proportional to 74,831.31, 103,266.50 and 40,839.53 is: 56,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,831.31 : 103,266.50 = 40,839.53 : x
  2. Step 2: Convert to fraction form
    74,831.31/103,266.50 = 40,839.53/x
  3. Step 3: Cross multiply
    74,831.31x = 103,266.50 × 40,839.53
  4. Step 4: Simplify right side
    74,831.31x = 4,217,354,604.21
  5. Step 5: Solve for x
    x = 4,217,354,604.21/74,831.31
  6. Step 6: Final answer
    x = 56,358.16

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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.