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Finding the Fourth Proportional to 66,340.55, 99,549.70 and 47,600.39

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Solution

The fourth proportional to 66,340.55, 99,549.70 and 47,600.39 is: 71,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,340.55 : 99,549.70 = 47,600.39 : x
  2. Step 2: Convert to fraction form
    66,340.55/99,549.70 = 47,600.39/x
  3. Step 3: Cross multiply
    66,340.55x = 99,549.70 × 47,600.39
  4. Step 4: Simplify right side
    66,340.55x = 4,738,604,544.38
  5. Step 5: Solve for x
    x = 4,738,604,544.38/66,340.55
  6. Step 6: Final answer
    x = 71,428.48

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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.