Home / 91,015.36-125,574.24-88,008.64

Finding the Fourth Proportional to 91,015.36, 125,574.24 and 88,008.64

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Solution

The fourth proportional to 91,015.36, 125,574.24 and 88,008.64 is: 121,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.36 : 125,574.24 = 88,008.64 : x
  2. Step 2: Convert to fraction form
    91,015.36/125,574.24 = 88,008.64/x
  3. Step 3: Cross multiply
    91,015.36x = 125,574.24 × 88,008.64
  4. Step 4: Simplify right side
    91,015.36x = 11,051,618,081.43
  5. Step 5: Solve for x
    x = 11,051,618,081.43/91,015.36
  6. Step 6: Final answer
    x = 121,425.86

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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.