Home / 91,202.40-136,912.95-51,253.20

Finding the Fourth Proportional to 91,202.40, 136,912.95 and 51,253.20

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Solution

The fourth proportional to 91,202.40, 136,912.95 and 51,253.20 is: 76,941.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,202.40 : 136,912.95 = 51,253.20 : x
  2. Step 2: Convert to fraction form
    91,202.40/136,912.95 = 51,253.20/x
  3. Step 3: Cross multiply
    91,202.40x = 136,912.95 × 51,253.20
  4. Step 4: Simplify right side
    91,202.40x = 7,017,226,808.94
  5. Step 5: Solve for x
    x = 7,017,226,808.94/91,202.40
  6. Step 6: Final answer
    x = 76,941.25

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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.