Home / 52,839.90-72,916.80-31,630.86

Finding the Fourth Proportional to 52,839.90, 72,916.80 and 31,630.86

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Solution

The fourth proportional to 52,839.90, 72,916.80 and 31,630.86 is: 43,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.90 : 72,916.80 = 31,630.86 : x
  2. Step 2: Convert to fraction form
    52,839.90/72,916.80 = 31,630.86/x
  3. Step 3: Cross multiply
    52,839.90x = 72,916.80 × 31,630.86
  4. Step 4: Simplify right side
    52,839.90x = 2,306,421,092.45
  5. Step 5: Solve for x
    x = 2,306,421,092.45/52,839.90
  6. Step 6: Final answer
    x = 43,649.23

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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.