Home / 91,140.60-136,463.86-47,272.44

Finding the Fourth Proportional to 91,140.60, 136,463.86 and 47,272.44

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Solution

The fourth proportional to 91,140.60, 136,463.86 and 47,272.44 is: 70,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,140.60 : 136,463.86 = 47,272.44 : x
  2. Step 2: Convert to fraction form
    91,140.60/136,463.86 = 47,272.44/x
  3. Step 3: Cross multiply
    91,140.60x = 136,463.86 × 47,272.44
  4. Step 4: Simplify right side
    91,140.60x = 6,450,979,634.02
  5. Step 5: Solve for x
    x = 6,450,979,634.02/91,140.60
  6. Step 6: Final answer
    x = 70,780.53

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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.