Home / 70,147.90-96,780.09-39,925.65

Finding the Fourth Proportional to 70,147.90, 96,780.09 and 39,925.65

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Solution

The fourth proportional to 70,147.90, 96,780.09 and 39,925.65 is: 55,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,147.90 : 96,780.09 = 39,925.65 : x
  2. Step 2: Convert to fraction form
    70,147.90/96,780.09 = 39,925.65/x
  3. Step 3: Cross multiply
    70,147.90x = 96,780.09 × 39,925.65
  4. Step 4: Simplify right side
    70,147.90x = 3,864,008,000.31
  5. Step 5: Solve for x
    x = 3,864,008,000.31/70,147.90
  6. Step 6: Final answer
    x = 55,083.73

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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.