Home / 91,434.69-126,190.33-51,158.66

Finding the Fourth Proportional to 91,434.69, 126,190.33 and 51,158.66

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Solution

The fourth proportional to 91,434.69, 126,190.33 and 51,158.66 is: 70,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,434.69 : 126,190.33 = 51,158.66 : x
  2. Step 2: Convert to fraction form
    91,434.69/126,190.33 = 51,158.66/x
  3. Step 3: Cross multiply
    91,434.69x = 126,190.33 × 51,158.66
  4. Step 4: Simplify right side
    91,434.69x = 6,455,727,428.91
  5. Step 5: Solve for x
    x = 6,455,727,428.91/91,434.69
  6. Step 6: Final answer
    x = 70,604.79

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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.