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Finding the Fourth Proportional to 71,695.68, 98,913.60 and 43,391.04

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Solution

The fourth proportional to 71,695.68, 98,913.60 and 43,391.04 is: 59,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,695.68 : 98,913.60 = 43,391.04 : x
  2. Step 2: Convert to fraction form
    71,695.68/98,913.60 = 43,391.04/x
  3. Step 3: Cross multiply
    71,695.68x = 98,913.60 × 43,391.04
  4. Step 4: Simplify right side
    71,695.68x = 4,291,963,974.14
  5. Step 5: Solve for x
    x = 4,291,963,974.14/71,695.68
  6. Step 6: Final answer
    x = 59,863.63

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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.