Home / 71,025.36-98,031.78-40,828.20

Finding the Fourth Proportional to 71,025.36, 98,031.78 and 40,828.20

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Solution

The fourth proportional to 71,025.36, 98,031.78 and 40,828.20 is: 56,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,025.36 : 98,031.78 = 40,828.20 : x
  2. Step 2: Convert to fraction form
    71,025.36/98,031.78 = 40,828.20/x
  3. Step 3: Cross multiply
    71,025.36x = 98,031.78 × 40,828.20
  4. Step 4: Simplify right side
    71,025.36x = 4,002,460,916.06
  5. Step 5: Solve for x
    x = 4,002,460,916.06/71,025.36
  6. Step 6: Final answer
    x = 56,352.56

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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.