Home / 65,085.12-90,277.57-63,357.73

Finding the Fourth Proportional to 65,085.12, 90,277.57 and 63,357.73

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Solution

The fourth proportional to 65,085.12, 90,277.57 and 63,357.73 is: 87,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,085.12 : 90,277.57 = 63,357.73 : x
  2. Step 2: Convert to fraction form
    65,085.12/90,277.57 = 63,357.73/x
  3. Step 3: Cross multiply
    65,085.12x = 90,277.57 × 63,357.73
  4. Step 4: Simplify right side
    65,085.12x = 5,719,781,805.36
  5. Step 5: Solve for x
    x = 5,719,781,805.36/65,085.12
  6. Step 6: Final answer
    x = 87,881.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.