Home / 98,781.10-136,317.66-53,459.17

Finding the Fourth Proportional to 98,781.10, 136,317.66 and 53,459.17

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Solution

The fourth proportional to 98,781.10, 136,317.66 and 53,459.17 is: 73,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,781.10 : 136,317.66 = 53,459.17 : x
  2. Step 2: Convert to fraction form
    98,781.10/136,317.66 = 53,459.17/x
  3. Step 3: Cross multiply
    98,781.10x = 136,317.66 × 53,459.17
  4. Step 4: Simplify right side
    98,781.10x = 7,287,428,959.94
  5. Step 5: Solve for x
    x = 7,287,428,959.94/98,781.10
  6. Step 6: Final answer
    x = 73,773.51

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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.