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Finding the Fourth Proportional to 60,515.84, 90,744.96 and 21,068.12

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Solution

The fourth proportional to 60,515.84, 90,744.96 and 21,068.12 is: 31,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,515.84 : 90,744.96 = 21,068.12 : x
  2. Step 2: Convert to fraction form
    60,515.84/90,744.96 = 21,068.12/x
  3. Step 3: Cross multiply
    60,515.84x = 90,744.96 × 21,068.12
  4. Step 4: Simplify right side
    60,515.84x = 1,911,825,706.68
  5. Step 5: Solve for x
    x = 1,911,825,706.68/60,515.84
  6. Step 6: Final answer
    x = 31,592.15

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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.