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Finding the Fourth Proportional to 60,022.80, 82,886.76 and 40,208.40

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Solution

The fourth proportional to 60,022.80, 82,886.76 and 40,208.40 is: 55,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,022.80 : 82,886.76 = 40,208.40 : x
  2. Step 2: Convert to fraction form
    60,022.80/82,886.76 = 40,208.40/x
  3. Step 3: Cross multiply
    60,022.80x = 82,886.76 × 40,208.40
  4. Step 4: Simplify right side
    60,022.80x = 3,332,744,000.78
  5. Step 5: Solve for x
    x = 3,332,744,000.78/60,022.80
  6. Step 6: Final answer
    x = 55,524.63

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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.