Home / 84,562.31-126,839.00-28,403.55

Finding the Fourth Proportional to 84,562.31, 126,839.00 and 28,403.55

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Solution

The fourth proportional to 84,562.31, 126,839.00 and 28,403.55 is: 42,603.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,562.31 : 126,839.00 = 28,403.55 : x
  2. Step 2: Convert to fraction form
    84,562.31/126,839.00 = 28,403.55/x
  3. Step 3: Cross multiply
    84,562.31x = 126,839.00 × 28,403.55
  4. Step 4: Simplify right side
    84,562.31x = 3,602,677,949.46
  5. Step 5: Solve for x
    x = 3,602,677,949.46/84,562.31
  6. Step 6: Final answer
    x = 42,603.82

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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.