Home / 91,202.05-125,870.20-55,382.64

Finding the Fourth Proportional to 91,202.05, 125,870.20 and 55,382.64

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Solution

The fourth proportional to 91,202.05, 125,870.20 and 55,382.64 is: 76,434.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,202.05 : 125,870.20 = 55,382.64 : x
  2. Step 2: Convert to fraction form
    91,202.05/125,870.20 = 55,382.64/x
  3. Step 3: Cross multiply
    91,202.05x = 125,870.20 × 55,382.64
  4. Step 4: Simplify right side
    91,202.05x = 6,971,023,674.39
  5. Step 5: Solve for x
    x = 6,971,023,674.39/91,202.05
  6. Step 6: Final answer
    x = 76,434.94

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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.