Home / 75,669.16-113,510.28-19,508.80

Finding the Fourth Proportional to 75,669.16, 113,510.28 and 19,508.80

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Solution

The fourth proportional to 75,669.16, 113,510.28 and 19,508.80 is: 29,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,669.16 : 113,510.28 = 19,508.80 : x
  2. Step 2: Convert to fraction form
    75,669.16/113,510.28 = 19,508.80/x
  3. Step 3: Cross multiply
    75,669.16x = 113,510.28 × 19,508.80
  4. Step 4: Simplify right side
    75,669.16x = 2,214,449,350.46
  5. Step 5: Solve for x
    x = 2,214,449,350.46/75,669.16
  6. Step 6: Final answer
    x = 29,264.89

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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.