Home / 71,015.90-98,001.85-39,184.79

Finding the Fourth Proportional to 71,015.90, 98,001.85 and 39,184.79

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Solution

The fourth proportional to 71,015.90, 98,001.85 and 39,184.79 is: 54,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.90 : 98,001.85 = 39,184.79 : x
  2. Step 2: Convert to fraction form
    71,015.90/98,001.85 = 39,184.79/x
  3. Step 3: Cross multiply
    71,015.90x = 98,001.85 × 39,184.79
  4. Step 4: Simplify right side
    71,015.90x = 3,840,181,715.94
  5. Step 5: Solve for x
    x = 3,840,181,715.94/71,015.90
  6. Step 6: Final answer
    x = 54,074.96

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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.