Home / 71,639.52-107,460.48-40,031.28

Finding the Fourth Proportional to 71,639.52, 107,460.48 and 40,031.28

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Solution

The fourth proportional to 71,639.52, 107,460.48 and 40,031.28 is: 60,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,639.52 : 107,460.48 = 40,031.28 : x
  2. Step 2: Convert to fraction form
    71,639.52/107,460.48 = 40,031.28/x
  3. Step 3: Cross multiply
    71,639.52x = 107,460.48 × 40,031.28
  4. Step 4: Simplify right side
    71,639.52x = 4,301,780,563.81
  5. Step 5: Solve for x
    x = 4,301,780,563.81/71,639.52
  6. Step 6: Final answer
    x = 60,047.59

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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.