Home / 91,319.45-126,020.51-51,033.20

Finding the Fourth Proportional to 91,319.45, 126,020.51 and 51,033.20

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Solution

The fourth proportional to 91,319.45, 126,020.51 and 51,033.20 is: 70,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,319.45 : 126,020.51 = 51,033.20 : x
  2. Step 2: Convert to fraction form
    91,319.45/126,020.51 = 51,033.20/x
  3. Step 3: Cross multiply
    91,319.45x = 126,020.51 × 51,033.20
  4. Step 4: Simplify right side
    91,319.45x = 6,431,229,890.93
  5. Step 5: Solve for x
    x = 6,431,229,890.93/91,319.45
  6. Step 6: Final answer
    x = 70,425.63

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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.