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Finding the Fourth Proportional to 91,838.76, 137,758.14 and 36,434.76

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Solution

The fourth proportional to 91,838.76, 137,758.14 and 36,434.76 is: 54,652.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,838.76 : 137,758.14 = 36,434.76 : x
  2. Step 2: Convert to fraction form
    91,838.76/137,758.14 = 36,434.76/x
  3. Step 3: Cross multiply
    91,838.76x = 137,758.14 × 36,434.76
  4. Step 4: Simplify right side
    91,838.76x = 5,019,184,768.95
  5. Step 5: Solve for x
    x = 5,019,184,768.95/91,838.76
  6. Step 6: Final answer
    x = 54,652.14

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1.5x scale

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.