Home / 52,175.52-78,207.12-21,002.40

Finding the Fourth Proportional to 52,175.52, 78,207.12 and 21,002.40

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Solution

The fourth proportional to 52,175.52, 78,207.12 and 21,002.40 is: 31,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,175.52 : 78,207.12 = 21,002.40 : x
  2. Step 2: Convert to fraction form
    52,175.52/78,207.12 = 21,002.40/x
  3. Step 3: Cross multiply
    52,175.52x = 78,207.12 × 21,002.40
  4. Step 4: Simplify right side
    52,175.52x = 1,642,537,217.09
  5. Step 5: Solve for x
    x = 1,642,537,217.09/52,175.52
  6. Step 6: Final answer
    x = 31,480.99

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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.