Home / 91,146.92-125,749.18-57,156.82

Finding the Fourth Proportional to 91,146.92, 125,749.18 and 57,156.82

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Solution

The fourth proportional to 91,146.92, 125,749.18 and 57,156.82 is: 78,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,146.92 : 125,749.18 = 57,156.82 : x
  2. Step 2: Convert to fraction form
    91,146.92/125,749.18 = 57,156.82/x
  3. Step 3: Cross multiply
    91,146.92x = 125,749.18 × 57,156.82
  4. Step 4: Simplify right side
    91,146.92x = 7,187,423,246.41
  5. Step 5: Solve for x
    x = 7,187,423,246.41/91,146.92
  6. Step 6: Final answer
    x = 78,855.36

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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.