Home / 79,755.18-119,688.00-31,718.87

Finding the Fourth Proportional to 79,755.18, 119,688.00 and 31,718.87

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Solution

The fourth proportional to 79,755.18, 119,688.00 and 31,718.87 is: 47,600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,755.18 : 119,688.00 = 31,718.87 : x
  2. Step 2: Convert to fraction form
    79,755.18/119,688.00 = 31,718.87/x
  3. Step 3: Cross multiply
    79,755.18x = 119,688.00 × 31,718.87
  4. Step 4: Simplify right side
    79,755.18x = 3,796,367,775.01
  5. Step 5: Solve for x
    x = 3,796,367,775.01/79,755.18
  6. Step 6: Final answer
    x = 47,600.26

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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.