Home / 71,400.48-98,536.60-39,568.72

Finding the Fourth Proportional to 71,400.48, 98,536.60 and 39,568.72

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Solution

The fourth proportional to 71,400.48, 98,536.60 and 39,568.72 is: 54,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,400.48 : 98,536.60 = 39,568.72 : x
  2. Step 2: Convert to fraction form
    71,400.48/98,536.60 = 39,568.72/x
  3. Step 3: Cross multiply
    71,400.48x = 98,536.60 × 39,568.72
  4. Step 4: Simplify right side
    71,400.48x = 3,898,967,135.15
  5. Step 5: Solve for x
    x = 3,898,967,135.15/71,400.48
  6. Step 6: Final answer
    x = 54,607.02

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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.