Home / 61,979.02-85,531.60-33,684.78

Finding the Fourth Proportional to 61,979.02, 85,531.60 and 33,684.78

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Solution

The fourth proportional to 61,979.02, 85,531.60 and 33,684.78 is: 46,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,979.02 : 85,531.60 = 33,684.78 : x
  2. Step 2: Convert to fraction form
    61,979.02/85,531.60 = 33,684.78/x
  3. Step 3: Cross multiply
    61,979.02x = 85,531.60 × 33,684.78
  4. Step 4: Simplify right side
    61,979.02x = 2,881,113,129.05
  5. Step 5: Solve for x
    x = 2,881,113,129.05/61,979.02
  6. Step 6: Final answer
    x = 46,485.30

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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.