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Finding the Fourth Proportional to 74,937.60, 103,406.40 and 41,401.44

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Solution

The fourth proportional to 74,937.60, 103,406.40 and 41,401.44 is: 57,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,937.60 : 103,406.40 = 41,401.44 : x
  2. Step 2: Convert to fraction form
    74,937.60/103,406.40 = 41,401.44/x
  3. Step 3: Cross multiply
    74,937.60x = 103,406.40 × 41,401.44
  4. Step 4: Simplify right side
    74,937.60x = 4,281,173,865.22
  5. Step 5: Solve for x
    x = 4,281,173,865.22/74,937.60
  6. Step 6: Final answer
    x = 57,129.85

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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.