Home / 98,098.20-135,390.69-57,825

Finding the Fourth Proportional to 98,098.20, 135,390.69 and 57,825

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Solution

The fourth proportional to 98,098.20, 135,390.69 and 57,825 is: 79,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,098.20 : 135,390.69 = 57,825 : x
  2. Step 2: Convert to fraction form
    98,098.20/135,390.69 = 57,825/x
  3. Step 3: Cross multiply
    98,098.20x = 135,390.69 × 57,825
  4. Step 4: Simplify right side
    98,098.20x = 7,828,966,649.25
  5. Step 5: Solve for x
    x = 7,828,966,649.25/98,098.20
  6. Step 6: Final answer
    x = 79,807.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.