Home / 91,319.42-136,953.61-38,692.91

Finding the Fourth Proportional to 91,319.42, 136,953.61 and 38,692.91

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Solution

The fourth proportional to 91,319.42, 136,953.61 and 38,692.91 is: 58,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,319.42 : 136,953.61 = 38,692.91 : x
  2. Step 2: Convert to fraction form
    91,319.42/136,953.61 = 38,692.91/x
  3. Step 3: Cross multiply
    91,319.42x = 136,953.61 × 38,692.91
  4. Step 4: Simplify right side
    91,319.42x = 5,299,133,951.56
  5. Step 5: Solve for x
    x = 5,299,133,951.56/91,319.42
  6. Step 6: Final answer
    x = 58,028.55

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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.