Home / 66,531.68-99,837.36-26,543.60

Finding the Fourth Proportional to 66,531.68, 99,837.36 and 26,543.60

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Solution

The fourth proportional to 66,531.68, 99,837.36 and 26,543.60 is: 39,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.68 : 99,837.36 = 26,543.60 : x
  2. Step 2: Convert to fraction form
    66,531.68/99,837.36 = 26,543.60/x
  3. Step 3: Cross multiply
    66,531.68x = 99,837.36 × 26,543.60
  4. Step 4: Simplify right side
    66,531.68x = 2,650,042,948.90
  5. Step 5: Solve for x
    x = 2,650,042,948.90/66,531.68
  6. Step 6: Final answer
    x = 39,831.29

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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.