Home / 78,900.14-118,351.26-26,309.65

Finding the Fourth Proportional to 78,900.14, 118,351.26 and 26,309.65

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Solution

The fourth proportional to 78,900.14, 118,351.26 and 26,309.65 is: 39,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,900.14 : 118,351.26 = 26,309.65 : x
  2. Step 2: Convert to fraction form
    78,900.14/118,351.26 = 26,309.65/x
  3. Step 3: Cross multiply
    78,900.14x = 118,351.26 × 26,309.65
  4. Step 4: Simplify right side
    78,900.14x = 3,113,780,227.66
  5. Step 5: Solve for x
    x = 3,113,780,227.66/78,900.14
  6. Step 6: Final answer
    x = 39,464.83

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1.5x scale

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.