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Finding the Fourth Proportional to 83,518.88, 125,275.88 and 30,927.20

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Solution

The fourth proportional to 83,518.88, 125,275.88 and 30,927.20 is: 46,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,518.88 : 125,275.88 = 30,927.20 : x
  2. Step 2: Convert to fraction form
    83,518.88/125,275.88 = 30,927.20/x
  3. Step 3: Cross multiply
    83,518.88x = 125,275.88 × 30,927.20
  4. Step 4: Simplify right side
    83,518.88x = 3,874,431,646.87
  5. Step 5: Solve for x
    x = 3,874,431,646.87/83,518.88
  6. Step 6: Final answer
    x = 46,389.89

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1.5x scale

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.