Home / 287,733.12-431,651.52-88,049.92

Finding the Fourth Proportional to 287,733.12, 431,651.52 and 88,049.92

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Solution

The fourth proportional to 287,733.12, 431,651.52 and 88,049.92 is: 132,090.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,733.12 : 431,651.52 = 88,049.92 : x
  2. Step 2: Convert to fraction form
    287,733.12/431,651.52 = 88,049.92/x
  3. Step 3: Cross multiply
    287,733.12x = 431,651.52 × 88,049.92
  4. Step 4: Simplify right side
    287,733.12x = 38,006,881,803.88
  5. Step 5: Solve for x
    x = 38,006,881,803.88/287,733.12
  6. Step 6: Final answer
    x = 132,090.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.