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Finding the Fourth Proportional to 71,180.40, 98,224.73 and 39,347.40

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Solution

The fourth proportional to 71,180.40, 98,224.73 and 39,347.40 is: 54,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,180.40 : 98,224.73 = 39,347.40 : x
  2. Step 2: Convert to fraction form
    71,180.40/98,224.73 = 39,347.40/x
  3. Step 3: Cross multiply
    71,180.40x = 98,224.73 × 39,347.40
  4. Step 4: Simplify right side
    71,180.40x = 3,864,887,741.20
  5. Step 5: Solve for x
    x = 3,864,887,741.20/71,180.40
  6. Step 6: Final answer
    x = 54,297.08

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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.