Home / 71,148.78-98,231.13-45,666.18

Finding the Fourth Proportional to 71,148.78, 98,231.13 and 45,666.18

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Solution

The fourth proportional to 71,148.78, 98,231.13 and 45,666.18 is: 63,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,148.78 : 98,231.13 = 45,666.18 : x
  2. Step 2: Convert to fraction form
    71,148.78/98,231.13 = 45,666.18/x
  3. Step 3: Cross multiply
    71,148.78x = 98,231.13 × 45,666.18
  4. Step 4: Simplify right side
    71,148.78x = 4,485,840,464.18
  5. Step 5: Solve for x
    x = 4,485,840,464.18/71,148.78
  6. Step 6: Final answer
    x = 63,048.73

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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.