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Finding the Fourth Proportional to 60,366.75, 90,555.12 and 18,813.75

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Solution

The fourth proportional to 60,366.75, 90,555.12 and 18,813.75 is: 28,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,366.75 : 90,555.12 = 18,813.75 : x
  2. Step 2: Convert to fraction form
    60,366.75/90,555.12 = 18,813.75/x
  3. Step 3: Cross multiply
    60,366.75x = 90,555.12 × 18,813.75
  4. Step 4: Simplify right side
    60,366.75x = 1,703,681,388.90
  5. Step 5: Solve for x
    x = 1,703,681,388.90/60,366.75
  6. Step 6: Final answer
    x = 28,222.18

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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.