Home / 90,749.76-125,226.24-84,062.40

Finding the Fourth Proportional to 90,749.76, 125,226.24 and 84,062.40

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Solution

The fourth proportional to 90,749.76, 125,226.24 and 84,062.40 is: 115,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,749.76 : 125,226.24 = 84,062.40 : x
  2. Step 2: Convert to fraction form
    90,749.76/125,226.24 = 84,062.40/x
  3. Step 3: Cross multiply
    90,749.76x = 125,226.24 × 84,062.40
  4. Step 4: Simplify right side
    90,749.76x = 10,526,818,277.38
  5. Step 5: Solve for x
    x = 10,526,818,277.38/90,749.76
  6. Step 6: Final answer
    x = 115,998.30

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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.