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Finding the Fourth Proportional to 71,670.78, 107,466.68 and 34,240.28

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Solution

The fourth proportional to 71,670.78, 107,466.68 and 34,240.28 is: 51,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,670.78 : 107,466.68 = 34,240.28 : x
  2. Step 2: Convert to fraction form
    71,670.78/107,466.68 = 34,240.28/x
  3. Step 3: Cross multiply
    71,670.78x = 107,466.68 × 34,240.28
  4. Step 4: Simplify right side
    71,670.78x = 3,679,689,213.87
  5. Step 5: Solve for x
    x = 3,679,689,213.87/71,670.78
  6. Step 6: Final answer
    x = 51,341.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.