Home / 98,883.90-148,358.66-39,689.10

Finding the Fourth Proportional to 98,883.90, 148,358.66 and 39,689.10

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Solution

The fourth proportional to 98,883.90, 148,358.66 and 39,689.10 is: 59,546.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,883.90 : 148,358.66 = 39,689.10 : x
  2. Step 2: Convert to fraction form
    98,883.90/148,358.66 = 39,689.10/x
  3. Step 3: Cross multiply
    98,883.90x = 148,358.66 × 39,689.10
  4. Step 4: Simplify right side
    98,883.90x = 5,888,221,494.16
  5. Step 5: Solve for x
    x = 5,888,221,494.16/98,883.90
  6. Step 6: Final answer
    x = 59,546.82

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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.