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Finding the Fourth Proportional to 61,670, 85,104.16 and 34,817.74

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Solution

The fourth proportional to 61,670, 85,104.16 and 34,817.74 is: 48,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,670 : 85,104.16 = 34,817.74 : x
  2. Step 2: Convert to fraction form
    61,670/85,104.16 = 34,817.74/x
  3. Step 3: Cross multiply
    61,670x = 85,104.16 × 34,817.74
  4. Step 4: Simplify right side
    61,670x = 2,963,134,515.80
  5. Step 5: Solve for x
    x = 2,963,134,515.80/61,670
  6. Step 6: Final answer
    x = 48,048.23

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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.