Home / 72,070.92-99,456.94-40,240.36

Finding the Fourth Proportional to 72,070.92, 99,456.94 and 40,240.36

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Solution

The fourth proportional to 72,070.92, 99,456.94 and 40,240.36 is: 55,531.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070.92 : 99,456.94 = 40,240.36 : x
  2. Step 2: Convert to fraction form
    72,070.92/99,456.94 = 40,240.36/x
  3. Step 3: Cross multiply
    72,070.92x = 99,456.94 × 40,240.36
  4. Step 4: Simplify right side
    72,070.92x = 4,002,183,070.10
  5. Step 5: Solve for x
    x = 4,002,183,070.10/72,070.92
  6. Step 6: Final answer
    x = 55,531.18

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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.