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Finding the Fourth Proportional to 71,324.58, 98,430.98 and 39,493.44

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Solution

The fourth proportional to 71,324.58, 98,430.98 and 39,493.44 is: 54,502.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,324.58 : 98,430.98 = 39,493.44 : x
  2. Step 2: Convert to fraction form
    71,324.58/98,430.98 = 39,493.44/x
  3. Step 3: Cross multiply
    71,324.58x = 98,430.98 × 39,493.44
  4. Step 4: Simplify right side
    71,324.58x = 3,887,378,002.77
  5. Step 5: Solve for x
    x = 3,887,378,002.77/71,324.58
  6. Step 6: Final answer
    x = 54,502.64

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1.5x scale

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.