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Finding the Fourth Proportional to 71,406.74, 98,541.10 and 39,575.64

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Solution

The fourth proportional to 71,406.74, 98,541.10 and 39,575.64 is: 54,614.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,406.74 : 98,541.10 = 39,575.64 : x
  2. Step 2: Convert to fraction form
    71,406.74/98,541.10 = 39,575.64/x
  3. Step 3: Cross multiply
    71,406.74x = 98,541.10 × 39,575.64
  4. Step 4: Simplify right side
    71,406.74x = 3,899,826,900.93
  5. Step 5: Solve for x
    x = 3,899,826,900.93/71,406.74
  6. Step 6: Final answer
    x = 54,614.27

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1.5x scale

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.