Home / 84,587.49-126,892.17-28,403.46

Finding the Fourth Proportional to 84,587.49, 126,892.17 and 28,403.46

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Solution

The fourth proportional to 84,587.49, 126,892.17 and 28,403.46 is: 42,608.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,587.49 : 126,892.17 = 28,403.46 : x
  2. Step 2: Convert to fraction form
    84,587.49/126,892.17 = 28,403.46/x
  3. Step 3: Cross multiply
    84,587.49x = 126,892.17 × 28,403.46
  4. Step 4: Simplify right side
    84,587.49x = 3,604,176,674.91
  5. Step 5: Solve for x
    x = 3,604,176,674.91/84,587.49
  6. Step 6: Final answer
    x = 42,608.86

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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.