Home / 80,750.04-111,561.45-61,696.50

Finding the Fourth Proportional to 80,750.04, 111,561.45 and 61,696.50

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Solution

The fourth proportional to 80,750.04, 111,561.45 and 61,696.50 is: 85,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,750.04 : 111,561.45 = 61,696.50 : x
  2. Step 2: Convert to fraction form
    80,750.04/111,561.45 = 61,696.50/x
  3. Step 3: Cross multiply
    80,750.04x = 111,561.45 × 61,696.50
  4. Step 4: Simplify right side
    80,750.04x = 6,882,950,999.93
  5. Step 5: Solve for x
    x = 6,882,950,999.93/80,750.04
  6. Step 6: Final answer
    x = 85,237.74

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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.