Home / 78,652.28-108,537.74-42,841.72

Finding the Fourth Proportional to 78,652.28, 108,537.74 and 42,841.72

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Solution

The fourth proportional to 78,652.28, 108,537.74 and 42,841.72 is: 59,120.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,652.28 : 108,537.74 = 42,841.72 : x
  2. Step 2: Convert to fraction form
    78,652.28/108,537.74 = 42,841.72/x
  3. Step 3: Cross multiply
    78,652.28x = 108,537.74 × 42,841.72
  4. Step 4: Simplify right side
    78,652.28x = 4,649,943,466.51
  5. Step 5: Solve for x
    x = 4,649,943,466.51/78,652.28
  6. Step 6: Final answer
    x = 59,120.26

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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.