Home / 74,125.68-111,154.86-31,985.79

Finding the Fourth Proportional to 74,125.68, 111,154.86 and 31,985.79

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Solution

The fourth proportional to 74,125.68, 111,154.86 and 31,985.79 is: 47,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125.68 : 111,154.86 = 31,985.79 : x
  2. Step 2: Convert to fraction form
    74,125.68/111,154.86 = 31,985.79/x
  3. Step 3: Cross multiply
    74,125.68x = 111,154.86 × 31,985.79
  4. Step 4: Simplify right side
    74,125.68x = 3,555,376,009.44
  5. Step 5: Solve for x
    x = 3,555,376,009.44/74,125.68
  6. Step 6: Final answer
    x = 47,964.16

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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.