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Finding the Fourth Proportional to 60,498.80, 90,845.40 and 45,724.40

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Solution

The fourth proportional to 60,498.80, 90,845.40 and 45,724.40 is: 68,660.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,498.80 : 90,845.40 = 45,724.40 : x
  2. Step 2: Convert to fraction form
    60,498.80/90,845.40 = 45,724.40/x
  3. Step 3: Cross multiply
    60,498.80x = 90,845.40 × 45,724.40
  4. Step 4: Simplify right side
    60,498.80x = 4,153,851,407.76
  5. Step 5: Solve for x
    x = 4,153,851,407.76/60,498.80
  6. Step 6: Final answer
    x = 68,660.06

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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.