Home / 77,189.43-115,597.27-53,430.40

Finding the Fourth Proportional to 77,189.43, 115,597.27 and 53,430.40

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Solution

The fourth proportional to 77,189.43, 115,597.27 and 53,430.40 is: 80,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,189.43 : 115,597.27 = 53,430.40 : x
  2. Step 2: Convert to fraction form
    77,189.43/115,597.27 = 53,430.40/x
  3. Step 3: Cross multiply
    77,189.43x = 115,597.27 × 53,430.40
  4. Step 4: Simplify right side
    77,189.43x = 6,176,408,375.01
  5. Step 5: Solve for x
    x = 6,176,408,375.01/77,189.43
  6. Step 6: Final answer
    x = 80,016.25

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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.