Home / 78,043.85-117,053.90-25,453.25

Finding the Fourth Proportional to 78,043.85, 117,053.90 and 25,453.25

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Solution

The fourth proportional to 78,043.85, 117,053.90 and 25,453.25 is: 38,176.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,043.85 : 117,053.90 = 25,453.25 : x
  2. Step 2: Convert to fraction form
    78,043.85/117,053.90 = 25,453.25/x
  3. Step 3: Cross multiply
    78,043.85x = 117,053.90 × 25,453.25
  4. Step 4: Simplify right side
    78,043.85x = 2,979,402,052.91
  5. Step 5: Solve for x
    x = 2,979,402,052.91/78,043.85
  6. Step 6: Final answer
    x = 38,176.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.