Home / 61,979.71-85,531.53-33,685.60

Finding the Fourth Proportional to 61,979.71, 85,531.53 and 33,685.60

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Solution

The fourth proportional to 61,979.71, 85,531.53 and 33,685.60 is: 46,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,979.71 : 85,531.53 = 33,685.60 : x
  2. Step 2: Convert to fraction form
    61,979.71/85,531.53 = 33,685.60/x
  3. Step 3: Cross multiply
    61,979.71x = 85,531.53 × 33,685.60
  4. Step 4: Simplify right side
    61,979.71x = 2,881,180,906.97
  5. Step 5: Solve for x
    x = 2,881,180,906.97/61,979.71
  6. Step 6: Final answer
    x = 46,485.87

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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.