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Finding the Fourth Proportional to 60,158.40, 90,220.08 and 18,036.80

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Solution

The fourth proportional to 60,158.40, 90,220.08 and 18,036.80 is: 27,049.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,158.40 : 90,220.08 = 18,036.80 : x
  2. Step 2: Convert to fraction form
    60,158.40/90,220.08 = 18,036.80/x
  3. Step 3: Cross multiply
    60,158.40x = 90,220.08 × 18,036.80
  4. Step 4: Simplify right side
    60,158.40x = 1,627,281,538.94
  5. Step 5: Solve for x
    x = 1,627,281,538.94/60,158.40
  6. Step 6: Final answer
    x = 27,049.95

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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.