Home / 52,132.01-78,198.10-12,689.15

Finding the Fourth Proportional to 52,132.01, 78,198.10 and 12,689.15

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Solution

The fourth proportional to 52,132.01, 78,198.10 and 12,689.15 is: 19,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,132.01 : 78,198.10 = 12,689.15 : x
  2. Step 2: Convert to fraction form
    52,132.01/78,198.10 = 12,689.15/x
  3. Step 3: Cross multiply
    52,132.01x = 78,198.10 × 12,689.15
  4. Step 4: Simplify right side
    52,132.01x = 992,267,256.84
  5. Step 5: Solve for x
    x = 992,267,256.84/52,132.01
  6. Step 6: Final answer
    x = 19,033.74

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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.