Home / 80,711.96-121,087.35-25,307.96

Finding the Fourth Proportional to 80,711.96, 121,087.35 and 25,307.96

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Solution

The fourth proportional to 80,711.96, 121,087.35 and 25,307.96 is: 37,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,711.96 : 121,087.35 = 25,307.96 : x
  2. Step 2: Convert to fraction form
    80,711.96/121,087.35 = 25,307.96/x
  3. Step 3: Cross multiply
    80,711.96x = 121,087.35 × 25,307.96
  4. Step 4: Simplify right side
    80,711.96x = 3,064,473,810.31
  5. Step 5: Solve for x
    x = 3,064,473,810.31/80,711.96
  6. Step 6: Final answer
    x = 37,968.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.