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Finding the Fourth Proportional to 81,335.52, 112,248 and 45,527.76

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Solution

The fourth proportional to 81,335.52, 112,248 and 45,527.76 is: 62,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.52 : 112,248 = 45,527.76 : x
  2. Step 2: Convert to fraction form
    81,335.52/112,248 = 45,527.76/x
  3. Step 3: Cross multiply
    81,335.52x = 112,248 × 45,527.76
  4. Step 4: Simplify right side
    81,335.52x = 5,110,400,004.48
  5. Step 5: Solve for x
    x = 5,110,400,004.48/81,335.52
  6. Step 6: Final answer
    x = 62,831.10

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1.5x scale

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.