Home / 91,067.13-136,567.89-38,480.72

Finding the Fourth Proportional to 91,067.13, 136,567.89 and 38,480.72

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Solution

The fourth proportional to 91,067.13, 136,567.89 and 38,480.72 is: 57,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.13 : 136,567.89 = 38,480.72 : x
  2. Step 2: Convert to fraction form
    91,067.13/136,567.89 = 38,480.72/x
  3. Step 3: Cross multiply
    91,067.13x = 136,567.89 × 38,480.72
  4. Step 4: Simplify right side
    91,067.13x = 5,255,230,053.24
  5. Step 5: Solve for x
    x = 5,255,230,053.24/91,067.13
  6. Step 6: Final answer
    x = 57,707.21

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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.