Home / 64,342.20-96,513.30-31,087.80

Finding the Fourth Proportional to 64,342.20, 96,513.30 and 31,087.80

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Solution

The fourth proportional to 64,342.20, 96,513.30 and 31,087.80 is: 46,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,342.20 : 96,513.30 = 31,087.80 : x
  2. Step 2: Convert to fraction form
    64,342.20/96,513.30 = 31,087.80/x
  3. Step 3: Cross multiply
    64,342.20x = 96,513.30 × 31,087.80
  4. Step 4: Simplify right side
    64,342.20x = 3,000,386,167.74
  5. Step 5: Solve for x
    x = 3,000,386,167.74/64,342.20
  6. Step 6: Final answer
    x = 46,631.70

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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.