Home / 84,402.64-126,621-37,655.52

Finding the Fourth Proportional to 84,402.64, 126,621 and 37,655.52

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Solution

The fourth proportional to 84,402.64, 126,621 and 37,655.52 is: 56,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,402.64 : 126,621 = 37,655.52 : x
  2. Step 2: Convert to fraction form
    84,402.64/126,621 = 37,655.52/x
  3. Step 3: Cross multiply
    84,402.64x = 126,621 × 37,655.52
  4. Step 4: Simplify right side
    84,402.64x = 4,767,979,597.92
  5. Step 5: Solve for x
    x = 4,767,979,597.92/84,402.64
  6. Step 6: Final answer
    x = 56,490.88

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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.