Home / 52,132.32-78,198.48-12,689.46

Finding the Fourth Proportional to 52,132.32, 78,198.48 and 12,689.46

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Solution

The fourth proportional to 52,132.32, 78,198.48 and 12,689.46 is: 19,034.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,132.32 : 78,198.48 = 12,689.46 : x
  2. Step 2: Convert to fraction form
    52,132.32/78,198.48 = 12,689.46/x
  3. Step 3: Cross multiply
    52,132.32x = 78,198.48 × 12,689.46
  4. Step 4: Simplify right side
    52,132.32x = 992,296,484.02
  5. Step 5: Solve for x
    x = 992,296,484.02/52,132.32
  6. Step 6: Final answer
    x = 19,034.19

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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.