Home / 81,838.56-113,000.76-63,902.46

Finding the Fourth Proportional to 81,838.56, 113,000.76 and 63,902.46

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Solution

The fourth proportional to 81,838.56, 113,000.76 and 63,902.46 is: 88,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,838.56 : 113,000.76 = 63,902.46 : x
  2. Step 2: Convert to fraction form
    81,838.56/113,000.76 = 63,902.46/x
  3. Step 3: Cross multiply
    81,838.56x = 113,000.76 × 63,902.46
  4. Step 4: Simplify right side
    81,838.56x = 7,221,026,545.87
  5. Step 5: Solve for x
    x = 7,221,026,545.87/81,838.56
  6. Step 6: Final answer
    x = 88,235.01

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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.