Home / 80,283.84-120,500.49-40,870.46

Finding the Fourth Proportional to 80,283.84, 120,500.49 and 40,870.46

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Solution

The fourth proportional to 80,283.84, 120,500.49 and 40,870.46 is: 61,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,283.84 : 120,500.49 = 40,870.46 : x
  2. Step 2: Convert to fraction form
    80,283.84/120,500.49 = 40,870.46/x
  3. Step 3: Cross multiply
    80,283.84x = 120,500.49 × 40,870.46
  4. Step 4: Simplify right side
    80,283.84x = 4,924,909,854.02
  5. Step 5: Solve for x
    x = 4,924,909,854.02/80,283.84
  6. Step 6: Final answer
    x = 61,343.73

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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.