Home / 72,510.11-108,760.77-43,115.01

Finding the Fourth Proportional to 72,510.11, 108,760.77 and 43,115.01

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Solution

The fourth proportional to 72,510.11, 108,760.77 and 43,115.01 is: 64,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,510.11 : 108,760.77 = 43,115.01 : x
  2. Step 2: Convert to fraction form
    72,510.11/108,760.77 = 43,115.01/x
  3. Step 3: Cross multiply
    72,510.11x = 108,760.77 × 43,115.01
  4. Step 4: Simplify right side
    72,510.11x = 4,689,221,142.35
  5. Step 5: Solve for x
    x = 4,689,221,142.35/72,510.11
  6. Step 6: Final answer
    x = 64,669.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.