Home / 90,750.76-125,227.62-84,063.40

Finding the Fourth Proportional to 90,750.76, 125,227.62 and 84,063.40

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Solution

The fourth proportional to 90,750.76, 125,227.62 and 84,063.40 is: 115,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,750.76 : 125,227.62 = 84,063.40 : x
  2. Step 2: Convert to fraction form
    90,750.76/125,227.62 = 84,063.40/x
  3. Step 3: Cross multiply
    90,750.76x = 125,227.62 × 84,063.40
  4. Step 4: Simplify right side
    90,750.76x = 10,527,059,511.11
  5. Step 5: Solve for x
    x = 10,527,059,511.11/90,750.76
  6. Step 6: Final answer
    x = 115,999.68

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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.