Home / 72,614.12-108,931.57-35,143.38

Finding the Fourth Proportional to 72,614.12, 108,931.57 and 35,143.38

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Solution

The fourth proportional to 72,614.12, 108,931.57 and 35,143.38 is: 52,720.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,614.12 : 108,931.57 = 35,143.38 : x
  2. Step 2: Convert to fraction form
    72,614.12/108,931.57 = 35,143.38/x
  3. Step 3: Cross multiply
    72,614.12x = 108,931.57 × 35,143.38
  4. Step 4: Simplify right side
    72,614.12x = 3,828,223,549.70
  5. Step 5: Solve for x
    x = 3,828,223,549.70/72,614.12
  6. Step 6: Final answer
    x = 52,720.10

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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.