Home / 72,293.73-99,753.43-45,417.21

Finding the Fourth Proportional to 72,293.73, 99,753.43 and 45,417.21

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Solution

The fourth proportional to 72,293.73, 99,753.43 and 45,417.21 is: 62,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,293.73 : 99,753.43 = 45,417.21 : x
  2. Step 2: Convert to fraction form
    72,293.73/99,753.43 = 45,417.21/x
  3. Step 3: Cross multiply
    72,293.73x = 99,753.43 × 45,417.21
  4. Step 4: Simplify right side
    72,293.73x = 4,530,522,478.53
  5. Step 5: Solve for x
    x = 4,530,522,478.53/72,293.73
  6. Step 6: Final answer
    x = 62,668.26

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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.