Home / 91,372.18-136,956.48-38,034.76

Finding the Fourth Proportional to 91,372.18, 136,956.48 and 38,034.76

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Solution

The fourth proportional to 91,372.18, 136,956.48 and 38,034.76 is: 57,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,372.18 : 136,956.48 = 38,034.76 : x
  2. Step 2: Convert to fraction form
    91,372.18/136,956.48 = 38,034.76/x
  3. Step 3: Cross multiply
    91,372.18x = 136,956.48 × 38,034.76
  4. Step 4: Simplify right side
    91,372.18x = 5,209,106,847.24
  5. Step 5: Solve for x
    x = 5,209,106,847.24/91,372.18
  6. Step 6: Final answer
    x = 57,009.77

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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.