Home / 91,423.74-126,176.44-51,139.74

Finding the Fourth Proportional to 91,423.74, 126,176.44 and 51,139.74

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Solution

The fourth proportional to 91,423.74, 126,176.44 and 51,139.74 is: 70,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.74 : 126,176.44 = 51,139.74 : x
  2. Step 2: Convert to fraction form
    91,423.74/126,176.44 = 51,139.74/x
  3. Step 3: Cross multiply
    91,423.74x = 126,176.44 × 51,139.74
  4. Step 4: Simplify right side
    91,423.74x = 6,452,630,335.73
  5. Step 5: Solve for x
    x = 6,452,630,335.73/91,423.74
  6. Step 6: Final answer
    x = 70,579.37

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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.