Home / 66,478.72-91,614-47,583.04

Finding the Fourth Proportional to 66,478.72, 91,614 and 47,583.04

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Solution

The fourth proportional to 66,478.72, 91,614 and 47,583.04 is: 65,573.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.72 : 91,614 = 47,583.04 : x
  2. Step 2: Convert to fraction form
    66,478.72/91,614 = 47,583.04/x
  3. Step 3: Cross multiply
    66,478.72x = 91,614 × 47,583.04
  4. Step 4: Simplify right side
    66,478.72x = 4,359,272,626.56
  5. Step 5: Solve for x
    x = 4,359,272,626.56/66,478.72
  6. Step 6: Final answer
    x = 65,573.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.