Home / 84,511.47-126,726.20-42,373.45

Finding the Fourth Proportional to 84,511.47, 126,726.20 and 42,373.45

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Solution

The fourth proportional to 84,511.47, 126,726.20 and 42,373.45 is: 63,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,511.47 : 126,726.20 = 42,373.45 : x
  2. Step 2: Convert to fraction form
    84,511.47/126,726.20 = 42,373.45/x
  3. Step 3: Cross multiply
    84,511.47x = 126,726.20 × 42,373.45
  4. Step 4: Simplify right side
    84,511.47x = 5,369,826,299.39
  5. Step 5: Solve for x
    x = 5,369,826,299.39/84,511.47
  6. Step 6: Final answer
    x = 63,539.62

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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.