Home / 89,831.48-123,909.90-54,032.72

Finding the Fourth Proportional to 89,831.48, 123,909.90 and 54,032.72

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Solution

The fourth proportional to 89,831.48, 123,909.90 and 54,032.72 is: 74,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,831.48 : 123,909.90 = 54,032.72 : x
  2. Step 2: Convert to fraction form
    89,831.48/123,909.90 = 54,032.72/x
  3. Step 3: Cross multiply
    89,831.48x = 123,909.90 × 54,032.72
  4. Step 4: Simplify right side
    89,831.48x = 6,695,188,931.93
  5. Step 5: Solve for x
    x = 6,695,188,931.93/89,831.48
  6. Step 6: Final answer
    x = 74,530.54

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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.