Home / 87,272.31-120,432.54-53,337.63

Finding the Fourth Proportional to 87,272.31, 120,432.54 and 53,337.63

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Solution

The fourth proportional to 87,272.31, 120,432.54 and 53,337.63 is: 73,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,272.31 : 120,432.54 = 53,337.63 : x
  2. Step 2: Convert to fraction form
    87,272.31/120,432.54 = 53,337.63/x
  3. Step 3: Cross multiply
    87,272.31x = 120,432.54 × 53,337.63
  4. Step 4: Simplify right side
    87,272.31x = 6,423,586,258.48
  5. Step 5: Solve for x
    x = 6,423,586,258.48/87,272.31
  6. Step 6: Final answer
    x = 73,603.94

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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.