Home / 78,052.08-107,682.88-51,209.52

Finding the Fourth Proportional to 78,052.08, 107,682.88 and 51,209.52

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Solution

The fourth proportional to 78,052.08, 107,682.88 and 51,209.52 is: 70,650.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,052.08 : 107,682.88 = 51,209.52 : x
  2. Step 2: Convert to fraction form
    78,052.08/107,682.88 = 51,209.52/x
  3. Step 3: Cross multiply
    78,052.08x = 107,682.88 × 51,209.52
  4. Step 4: Simplify right side
    78,052.08x = 5,514,388,597.02
  5. Step 5: Solve for x
    x = 5,514,388,597.02/78,052.08
  6. Step 6: Final answer
    x = 70,650.12

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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.