Home / 98,872.31-136,455.77-55,853.61

Finding the Fourth Proportional to 98,872.31, 136,455.77 and 55,853.61

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Solution

The fourth proportional to 98,872.31, 136,455.77 and 55,853.61 is: 77,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,872.31 : 136,455.77 = 55,853.61 : x
  2. Step 2: Convert to fraction form
    98,872.31/136,455.77 = 55,853.61/x
  3. Step 3: Cross multiply
    98,872.31x = 136,455.77 × 55,853.61
  4. Step 4: Simplify right side
    98,872.31x = 7,621,547,080.56
  5. Step 5: Solve for x
    x = 7,621,547,080.56/98,872.31
  6. Step 6: Final answer
    x = 77,084.75

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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.