Home / 91,302.85-136,965.21-38,705.50

Finding the Fourth Proportional to 91,302.85, 136,965.21 and 38,705.50

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Solution

The fourth proportional to 91,302.85, 136,965.21 and 38,705.50 is: 58,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,302.85 : 136,965.21 = 38,705.50 : x
  2. Step 2: Convert to fraction form
    91,302.85/136,965.21 = 38,705.50/x
  3. Step 3: Cross multiply
    91,302.85x = 136,965.21 × 38,705.50
  4. Step 4: Simplify right side
    91,302.85x = 5,301,306,935.66
  5. Step 5: Solve for x
    x = 5,301,306,935.66/91,302.85
  6. Step 6: Final answer
    x = 58,062.89

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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.