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Finding the Fourth Proportional to 60,306.80, 90,430.94 and 18,179.02

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Solution

The fourth proportional to 60,306.80, 90,430.94 and 18,179.02 is: 27,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,306.80 : 90,430.94 = 18,179.02 : x
  2. Step 2: Convert to fraction form
    60,306.80/90,430.94 = 18,179.02/x
  3. Step 3: Cross multiply
    60,306.80x = 90,430.94 × 18,179.02
  4. Step 4: Simplify right side
    60,306.80x = 1,643,946,025.37
  5. Step 5: Solve for x
    x = 1,643,946,025.37/60,306.80
  6. Step 6: Final answer
    x = 27,259.71

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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.