Home / 87,360.62-120,573.66-57,172.76

Finding the Fourth Proportional to 87,360.62, 120,573.66 and 57,172.76

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Solution

The fourth proportional to 87,360.62, 120,573.66 and 57,172.76 is: 78,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,360.62 : 120,573.66 = 57,172.76 : x
  2. Step 2: Convert to fraction form
    87,360.62/120,573.66 = 57,172.76/x
  3. Step 3: Cross multiply
    87,360.62x = 120,573.66 × 57,172.76
  4. Step 4: Simplify right side
    87,360.62x = 6,893,528,925.50
  5. Step 5: Solve for x
    x = 6,893,528,925.50/87,360.62
  6. Step 6: Final answer
    x = 78,908.88

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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.