Home / 63,712.36-87,920.10-35,417.80

Finding the Fourth Proportional to 63,712.36, 87,920.10 and 35,417.80

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Solution

The fourth proportional to 63,712.36, 87,920.10 and 35,417.80 is: 48,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,712.36 : 87,920.10 = 35,417.80 : x
  2. Step 2: Convert to fraction form
    63,712.36/87,920.10 = 35,417.80/x
  3. Step 3: Cross multiply
    63,712.36x = 87,920.10 × 35,417.80
  4. Step 4: Simplify right side
    63,712.36x = 3,113,936,517.78
  5. Step 5: Solve for x
    x = 3,113,936,517.78/63,712.36
  6. Step 6: Final answer
    x = 48,874.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.