Home / 71,043.30-98,059.07-40,831.72

Finding the Fourth Proportional to 71,043.30, 98,059.07 and 40,831.72

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Solution

The fourth proportional to 71,043.30, 98,059.07 and 40,831.72 is: 56,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043.30 : 98,059.07 = 40,831.72 : x
  2. Step 2: Convert to fraction form
    71,043.30/98,059.07 = 40,831.72/x
  3. Step 3: Cross multiply
    71,043.30x = 98,059.07 × 40,831.72
  4. Step 4: Simplify right side
    71,043.30x = 4,003,920,346.63
  5. Step 5: Solve for x
    x = 4,003,920,346.63/71,043.30
  6. Step 6: Final answer
    x = 56,358.87

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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.