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Finding the Fourth Proportional to 60,459.91, 90,690.08 and 18,340.36

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Solution

The fourth proportional to 60,459.91, 90,690.08 and 18,340.36 is: 27,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,459.91 : 90,690.08 = 18,340.36 : x
  2. Step 2: Convert to fraction form
    60,459.91/90,690.08 = 18,340.36/x
  3. Step 3: Cross multiply
    60,459.91x = 90,690.08 × 18,340.36
  4. Step 4: Simplify right side
    60,459.91x = 1,663,288,170.48
  5. Step 5: Solve for x
    x = 1,663,288,170.48/60,459.91
  6. Step 6: Final answer
    x = 27,510.60

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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.