Home / 84,240.76-126,295.08-42,118.96

Finding the Fourth Proportional to 84,240.76, 126,295.08 and 42,118.96

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Solution

The fourth proportional to 84,240.76, 126,295.08 and 42,118.96 is: 63,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,240.76 : 126,295.08 = 42,118.96 : x
  2. Step 2: Convert to fraction form
    84,240.76/126,295.08 = 42,118.96/x
  3. Step 3: Cross multiply
    84,240.76x = 126,295.08 × 42,118.96
  4. Step 4: Simplify right side
    84,240.76x = 5,319,417,422.72
  5. Step 5: Solve for x
    x = 5,319,417,422.72/84,240.76
  6. Step 6: Final answer
    x = 63,145.41

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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.