Home / 90,545.13-124,960.19-52,831.53

Finding the Fourth Proportional to 90,545.13, 124,960.19 and 52,831.53

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Solution

The fourth proportional to 90,545.13, 124,960.19 and 52,831.53 is: 72,912.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,545.13 : 124,960.19 = 52,831.53 : x
  2. Step 2: Convert to fraction form
    90,545.13/124,960.19 = 52,831.53/x
  3. Step 3: Cross multiply
    90,545.13x = 124,960.19 × 52,831.53
  4. Step 4: Simplify right side
    90,545.13x = 6,601,837,762.63
  5. Step 5: Solve for x
    x = 6,601,837,762.63/90,545.13
  6. Step 6: Final answer
    x = 72,912.12

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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.