Home / 85,422.92-128,146.66-26,263.56

Finding the Fourth Proportional to 85,422.92, 128,146.66 and 26,263.56

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Solution

The fourth proportional to 85,422.92, 128,146.66 and 26,263.56 is: 39,399.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,422.92 : 128,146.66 = 26,263.56 : x
  2. Step 2: Convert to fraction form
    85,422.92/128,146.66 = 26,263.56/x
  3. Step 3: Cross multiply
    85,422.92x = 128,146.66 × 26,263.56
  4. Step 4: Simplify right side
    85,422.92x = 3,365,587,493.71
  5. Step 5: Solve for x
    x = 3,365,587,493.71/85,422.92
  6. Step 6: Final answer
    x = 39,399.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.