Home / 91,091.60-125,707.12-50,807.92

Finding the Fourth Proportional to 91,091.60, 125,707.12 and 50,807.92

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Solution

The fourth proportional to 91,091.60, 125,707.12 and 50,807.92 is: 70,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,091.60 : 125,707.12 = 50,807.92 : x
  2. Step 2: Convert to fraction form
    91,091.60/125,707.12 = 50,807.92/x
  3. Step 3: Cross multiply
    91,091.60x = 125,707.12 × 50,807.92
  4. Step 4: Simplify right side
    91,091.60x = 6,386,917,296.39
  5. Step 5: Solve for x
    x = 6,386,917,296.39/91,091.60
  6. Step 6: Final answer
    x = 70,115.33

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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.