Home / 145,288.11-217,931.84-38,672.09

Finding the Fourth Proportional to 145,288.11, 217,931.84 and 38,672.09

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Solution

The fourth proportional to 145,288.11, 217,931.84 and 38,672.09 is: 58,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,288.11 : 217,931.84 = 38,672.09 : x
  2. Step 2: Convert to fraction form
    145,288.11/217,931.84 = 38,672.09/x
  3. Step 3: Cross multiply
    145,288.11x = 217,931.84 × 38,672.09
  4. Step 4: Simplify right side
    145,288.11x = 8,427,878,447.33
  5. Step 5: Solve for x
    x = 8,427,878,447.33/145,288.11
  6. Step 6: Final answer
    x = 58,008.04

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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.