Home / 57,722.30-86,583.45-47,872.70

Finding the Fourth Proportional to 57,722.30, 86,583.45 and 47,872.70

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Solution

The fourth proportional to 57,722.30, 86,583.45 and 47,872.70 is: 71,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.30 : 86,583.45 = 47,872.70 : x
  2. Step 2: Convert to fraction form
    57,722.30/86,583.45 = 47,872.70/x
  3. Step 3: Cross multiply
    57,722.30x = 86,583.45 × 47,872.70
  4. Step 4: Simplify right side
    57,722.30x = 4,144,983,526.82
  5. Step 5: Solve for x
    x = 4,144,983,526.82/57,722.30
  6. Step 6: Final answer
    x = 71,809.05

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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.