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Finding the Fourth Proportional to 71,370.63, 98,491.41 and 39,541.55

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Solution

The fourth proportional to 71,370.63, 98,491.41 and 39,541.55 is: 54,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,370.63 : 98,491.41 = 39,541.55 : x
  2. Step 2: Convert to fraction form
    71,370.63/98,491.41 = 39,541.55/x
  3. Step 3: Cross multiply
    71,370.63x = 98,491.41 × 39,541.55
  4. Step 4: Simplify right side
    71,370.63x = 3,894,502,520.63
  5. Step 5: Solve for x
    x = 3,894,502,520.63/71,370.63
  6. Step 6: Final answer
    x = 54,567.30

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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.