Home / 91,311.38-126,007.28-51,025.47

Finding the Fourth Proportional to 91,311.38, 126,007.28 and 51,025.47

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Solution

The fourth proportional to 91,311.38, 126,007.28 and 51,025.47 is: 70,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,311.38 : 126,007.28 = 51,025.47 : x
  2. Step 2: Convert to fraction form
    91,311.38/126,007.28 = 51,025.47/x
  3. Step 3: Cross multiply
    91,311.38x = 126,007.28 × 51,025.47
  4. Step 4: Simplify right side
    91,311.38x = 6,429,580,685.42
  5. Step 5: Solve for x
    x = 6,429,580,685.42/91,311.38
  6. Step 6: Final answer
    x = 70,413.79

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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.