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Finding the Fourth Proportional to 66,560.42, 99,838.71 and 17,312.42

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Solution

The fourth proportional to 66,560.42, 99,838.71 and 17,312.42 is: 25,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,560.42 : 99,838.71 = 17,312.42 : x
  2. Step 2: Convert to fraction form
    66,560.42/99,838.71 = 17,312.42/x
  3. Step 3: Cross multiply
    66,560.42x = 99,838.71 × 17,312.42
  4. Step 4: Simplify right side
    66,560.42x = 1,728,449,679.78
  5. Step 5: Solve for x
    x = 1,728,449,679.78/66,560.42
  6. Step 6: Final answer
    x = 25,968.13

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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.