Home / 58,578.90-80,839.11-31,721.42

Finding the Fourth Proportional to 58,578.90, 80,839.11 and 31,721.42

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Solution

The fourth proportional to 58,578.90, 80,839.11 and 31,721.42 is: 43,775.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,578.90 : 80,839.11 = 31,721.42 : x
  2. Step 2: Convert to fraction form
    58,578.90/80,839.11 = 31,721.42/x
  3. Step 3: Cross multiply
    58,578.90x = 80,839.11 × 31,721.42
  4. Step 4: Simplify right side
    58,578.90x = 2,564,331,681.79
  5. Step 5: Solve for x
    x = 2,564,331,681.79/58,578.90
  6. Step 6: Final answer
    x = 43,775.69

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1.5x scale

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.