Home / 91,167.39-136,752.30-38,538.45

Finding the Fourth Proportional to 91,167.39, 136,752.30 and 38,538.45

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Solution

The fourth proportional to 91,167.39, 136,752.30 and 38,538.45 is: 57,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,167.39 : 136,752.30 = 38,538.45 : x
  2. Step 2: Convert to fraction form
    91,167.39/136,752.30 = 38,538.45/x
  3. Step 3: Cross multiply
    91,167.39x = 136,752.30 × 38,538.45
  4. Step 4: Simplify right side
    91,167.39x = 5,270,221,675.94
  5. Step 5: Solve for x
    x = 5,270,221,675.94/91,167.39
  6. Step 6: Final answer
    x = 57,808.19

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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.