Home / 90,867.70-125,326.38-59,046.82

Finding the Fourth Proportional to 90,867.70, 125,326.38 and 59,046.82

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Solution

The fourth proportional to 90,867.70, 125,326.38 and 59,046.82 is: 81,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,867.70 : 125,326.38 = 59,046.82 : x
  2. Step 2: Convert to fraction form
    90,867.70/125,326.38 = 59,046.82/x
  3. Step 3: Cross multiply
    90,867.70x = 125,326.38 × 59,046.82
  4. Step 4: Simplify right side
    90,867.70x = 7,400,124,201.11
  5. Step 5: Solve for x
    x = 7,400,124,201.11/90,867.70
  6. Step 6: Final answer
    x = 81,438.45

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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.