Home / 78,766.13-108,703.73-44,785.28

Finding the Fourth Proportional to 78,766.13, 108,703.73 and 44,785.28

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Solution

The fourth proportional to 78,766.13, 108,703.73 and 44,785.28 is: 61,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.13 : 108,703.73 = 44,785.28 : x
  2. Step 2: Convert to fraction form
    78,766.13/108,703.73 = 44,785.28/x
  3. Step 3: Cross multiply
    78,766.13x = 108,703.73 × 44,785.28
  4. Step 4: Simplify right side
    78,766.13x = 4,868,326,761.17
  5. Step 5: Solve for x
    x = 4,868,326,761.17/78,766.13
  6. Step 6: Final answer
    x = 61,807.36

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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.