Home / 94,121.96-129,890.40-51,680.66

Finding the Fourth Proportional to 94,121.96, 129,890.40 and 51,680.66

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Solution

The fourth proportional to 94,121.96, 129,890.40 and 51,680.66 is: 71,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,121.96 : 129,890.40 = 51,680.66 : x
  2. Step 2: Convert to fraction form
    94,121.96/129,890.40 = 51,680.66/x
  3. Step 3: Cross multiply
    94,121.96x = 129,890.40 × 51,680.66
  4. Step 4: Simplify right side
    94,121.96x = 6,712,821,599.66
  5. Step 5: Solve for x
    x = 6,712,821,599.66/94,121.96
  6. Step 6: Final answer
    x = 71,320.46

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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.