Home / 78,580.26-108,443.10-48,383.00

Finding the Fourth Proportional to 78,580.26, 108,443.10 and 48,383.00

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Solution

The fourth proportional to 78,580.26, 108,443.10 and 48,383.00 is: 66,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,580.26 : 108,443.10 = 48,383.00 : x
  2. Step 2: Convert to fraction form
    78,580.26/108,443.10 = 48,383.00/x
  3. Step 3: Cross multiply
    78,580.26x = 108,443.10 × 48,383.00
  4. Step 4: Simplify right side
    78,580.26x = 5,246,802,959.84
  5. Step 5: Solve for x
    x = 5,246,802,959.84/78,580.26
  6. Step 6: Final answer
    x = 66,769.98

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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.