Home / 78,595.31-108,429.48-48,371.51

Finding the Fourth Proportional to 78,595.31, 108,429.48 and 48,371.51

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Solution

The fourth proportional to 78,595.31, 108,429.48 and 48,371.51 is: 66,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,595.31 : 108,429.48 = 48,371.51 : x
  2. Step 2: Convert to fraction form
    78,595.31/108,429.48 = 48,371.51/x
  3. Step 3: Cross multiply
    78,595.31x = 108,429.48 × 48,371.51
  4. Step 4: Simplify right side
    78,595.31x = 5,244,897,676.11
  5. Step 5: Solve for x
    x = 5,244,897,676.11/78,595.31
  6. Step 6: Final answer
    x = 66,732.96

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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.