Home / 72,258.26-99,718.17-40,429.22

Finding the Fourth Proportional to 72,258.26, 99,718.17 and 40,429.22

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Solution

The fourth proportional to 72,258.26, 99,718.17 and 40,429.22 is: 55,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,258.26 : 99,718.17 = 40,429.22 : x
  2. Step 2: Convert to fraction form
    72,258.26/99,718.17 = 40,429.22/x
  3. Step 3: Cross multiply
    72,258.26x = 99,718.17 × 40,429.22
  4. Step 4: Simplify right side
    72,258.26x = 4,031,527,832.93
  5. Step 5: Solve for x
    x = 4,031,527,832.93/72,258.26
  6. Step 6: Final answer
    x = 55,793.31

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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.