Home / 91,091.12-125,740.44-68,495.76

Finding the Fourth Proportional to 91,091.12, 125,740.44 and 68,495.76

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Solution

The fourth proportional to 91,091.12, 125,740.44 and 68,495.76 is: 94,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.12 : 125,740.44 = 68,495.76 : x
  2. Step 2: Convert to fraction form
    91,091.12/125,740.44 = 68,495.76/x
  3. Step 3: Cross multiply
    91,091.12x = 125,740.44 × 68,495.76
  4. Step 4: Simplify right side
    91,091.12x = 8,612,687,000.53
  5. Step 5: Solve for x
    x = 8,612,687,000.53/91,091.12
  6. Step 6: Final answer
    x = 94,550.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.