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Finding the Fourth Proportional to 30,085.52, 45,086.88 and 25,620.08

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Solution

The fourth proportional to 30,085.52, 45,086.88 and 25,620.08 is: 38,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.52 : 45,086.88 = 25,620.08 : x
  2. Step 2: Convert to fraction form
    30,085.52/45,086.88 = 25,620.08/x
  3. Step 3: Cross multiply
    30,085.52x = 45,086.88 × 25,620.08
  4. Step 4: Simplify right side
    30,085.52x = 1,155,129,472.55
  5. Step 5: Solve for x
    x = 1,155,129,472.55/30,085.52
  6. Step 6: Final answer
    x = 38,394.86

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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.