Home / 71,225.20-98,291.64-39,393.28

Finding the Fourth Proportional to 71,225.20, 98,291.64 and 39,393.28

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Solution

The fourth proportional to 71,225.20, 98,291.64 and 39,393.28 is: 54,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,225.20 : 98,291.64 = 39,393.28 : x
  2. Step 2: Convert to fraction form
    71,225.20/98,291.64 = 39,393.28/x
  3. Step 3: Cross multiply
    71,225.20x = 98,291.64 × 39,393.28
  4. Step 4: Simplify right side
    71,225.20x = 3,872,030,096.18
  5. Step 5: Solve for x
    x = 3,872,030,096.18/71,225.20
  6. Step 6: Final answer
    x = 54,363.20

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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.