Home / 287,613.04-431,270.16-87,892.96

Finding the Fourth Proportional to 287,613.04, 431,270.16 and 87,892.96

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Solution

The fourth proportional to 287,613.04, 431,270.16 and 87,892.96 is: 131,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,613.04 : 431,270.16 = 87,892.96 : x
  2. Step 2: Convert to fraction form
    287,613.04/431,270.16 = 87,892.96/x
  3. Step 3: Cross multiply
    287,613.04x = 431,270.16 × 87,892.96
  4. Step 4: Simplify right side
    287,613.04x = 37,905,610,922.07
  5. Step 5: Solve for x
    x = 37,905,610,922.07/287,613.04
  6. Step 6: Final answer
    x = 131,793.78

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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.