Home / 76,159.28-114,112.80-26,212.40

Finding the Fourth Proportional to 76,159.28, 114,112.80 and 26,212.40

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Solution

The fourth proportional to 76,159.28, 114,112.80 and 26,212.40 is: 39,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,159.28 : 114,112.80 = 26,212.40 : x
  2. Step 2: Convert to fraction form
    76,159.28/114,112.80 = 26,212.40/x
  3. Step 3: Cross multiply
    76,159.28x = 114,112.80 × 26,212.40
  4. Step 4: Simplify right side
    76,159.28x = 2,991,170,358.72
  5. Step 5: Solve for x
    x = 2,991,170,358.72/76,159.28
  6. Step 6: Final answer
    x = 39,275.19

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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.