Home / 71,301.10-107,056.80-39,772.76

Finding the Fourth Proportional to 71,301.10, 107,056.80 and 39,772.76

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Solution

The fourth proportional to 71,301.10, 107,056.80 and 39,772.76 is: 59,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,301.10 : 107,056.80 = 39,772.76 : x
  2. Step 2: Convert to fraction form
    71,301.10/107,056.80 = 39,772.76/x
  3. Step 3: Cross multiply
    71,301.10x = 107,056.80 × 39,772.76
  4. Step 4: Simplify right side
    71,301.10x = 4,257,944,412.77
  5. Step 5: Solve for x
    x = 4,257,944,412.77/71,301.10
  6. Step 6: Final answer
    x = 59,717.79

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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.