Home / 78,693.12-108,577.26-50,437.08

Finding the Fourth Proportional to 78,693.12, 108,577.26 and 50,437.08

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Solution

The fourth proportional to 78,693.12, 108,577.26 and 50,437.08 is: 69,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.12 : 108,577.26 = 50,437.08 : x
  2. Step 2: Convert to fraction form
    78,693.12/108,577.26 = 50,437.08/x
  3. Step 3: Cross multiply
    78,693.12x = 108,577.26 × 50,437.08
  4. Step 4: Simplify right side
    78,693.12x = 5,476,319,948.80
  5. Step 5: Solve for x
    x = 5,476,319,948.80/78,693.12
  6. Step 6: Final answer
    x = 69,590.84

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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.