Home / 91,255.14-136,769.70-51,692.31

Finding the Fourth Proportional to 91,255.14, 136,769.70 and 51,692.31

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Solution

The fourth proportional to 91,255.14, 136,769.70 and 51,692.31 is: 77,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,255.14 : 136,769.70 = 51,692.31 : x
  2. Step 2: Convert to fraction form
    91,255.14/136,769.70 = 51,692.31/x
  3. Step 3: Cross multiply
    91,255.14x = 136,769.70 × 51,692.31
  4. Step 4: Simplify right side
    91,255.14x = 7,069,941,731.01
  5. Step 5: Solve for x
    x = 7,069,941,731.01/91,255.14
  6. Step 6: Final answer
    x = 77,474.45

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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.