Home / 91,128.39-125,757.27-50,842.17

Finding the Fourth Proportional to 91,128.39, 125,757.27 and 50,842.17

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Solution

The fourth proportional to 91,128.39, 125,757.27 and 50,842.17 is: 70,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,128.39 : 125,757.27 = 50,842.17 : x
  2. Step 2: Convert to fraction form
    91,128.39/125,757.27 = 50,842.17/x
  3. Step 3: Cross multiply
    91,128.39x = 125,757.27 × 50,842.17
  4. Step 4: Simplify right side
    91,128.39x = 6,393,772,500.08
  5. Step 5: Solve for x
    x = 6,393,772,500.08/91,128.39
  6. Step 6: Final answer
    x = 70,162.25

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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.