Home / 70,985.23-106,470.75-28,867.79

Finding the Fourth Proportional to 70,985.23, 106,470.75 and 28,867.79

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Solution

The fourth proportional to 70,985.23, 106,470.75 and 28,867.79 is: 43,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985.23 : 106,470.75 = 28,867.79 : x
  2. Step 2: Convert to fraction form
    70,985.23/106,470.75 = 28,867.79/x
  3. Step 3: Cross multiply
    70,985.23x = 106,470.75 × 28,867.79
  4. Step 4: Simplify right side
    70,985.23x = 3,073,575,626.57
  5. Step 5: Solve for x
    x = 3,073,575,626.57/70,985.23
  6. Step 6: Final answer
    x = 43,298.81

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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.