Home / 78,324.20-108,084.48-42,513.44

Finding the Fourth Proportional to 78,324.20, 108,084.48 and 42,513.44

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Solution

The fourth proportional to 78,324.20, 108,084.48 and 42,513.44 is: 58,666.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,324.20 : 108,084.48 = 42,513.44 : x
  2. Step 2: Convert to fraction form
    78,324.20/108,084.48 = 42,513.44/x
  3. Step 3: Cross multiply
    78,324.20x = 108,084.48 × 42,513.44
  4. Step 4: Simplify right side
    78,324.20x = 4,595,043,055.41
  5. Step 5: Solve for x
    x = 4,595,043,055.41/78,324.20
  6. Step 6: Final answer
    x = 58,666.96

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1.5x scale

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.