Home / 72,071.02-99,456.96-40,240.36

Finding the Fourth Proportional to 72,071.02, 99,456.96 and 40,240.36

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Solution

The fourth proportional to 72,071.02, 99,456.96 and 40,240.36 is: 55,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,071.02 : 99,456.96 = 40,240.36 : x
  2. Step 2: Convert to fraction form
    72,071.02/99,456.96 = 40,240.36/x
  3. Step 3: Cross multiply
    72,071.02x = 99,456.96 × 40,240.36
  4. Step 4: Simplify right side
    72,071.02x = 4,002,183,874.91
  5. Step 5: Solve for x
    x = 4,002,183,874.91/72,071.02
  6. Step 6: Final answer
    x = 55,531.11

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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.