Home / 70,146.90-96,778.71-39,924.65

Finding the Fourth Proportional to 70,146.90, 96,778.71 and 39,924.65

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Solution

The fourth proportional to 70,146.90, 96,778.71 and 39,924.65 is: 55,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,146.90 : 96,778.71 = 39,924.65 : x
  2. Step 2: Convert to fraction form
    70,146.90/96,778.71 = 39,924.65/x
  3. Step 3: Cross multiply
    70,146.90x = 96,778.71 × 39,924.65
  4. Step 4: Simplify right side
    70,146.90x = 3,863,856,366.15
  5. Step 5: Solve for x
    x = 3,863,856,366.15/70,146.90
  6. Step 6: Final answer
    x = 55,082.35

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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.