Home / 71,976.66-99,276.36-62,399.43

Finding the Fourth Proportional to 71,976.66, 99,276.36 and 62,399.43

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Solution

The fourth proportional to 71,976.66, 99,276.36 and 62,399.43 is: 86,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.66 : 99,276.36 = 62,399.43 : x
  2. Step 2: Convert to fraction form
    71,976.66/99,276.36 = 62,399.43/x
  3. Step 3: Cross multiply
    71,976.66x = 99,276.36 × 62,399.43
  4. Step 4: Simplify right side
    71,976.66x = 6,194,788,276.47
  5. Step 5: Solve for x
    x = 6,194,788,276.47/71,976.66
  6. Step 6: Final answer
    x = 86,066.63

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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.