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Finding the Fourth Proportional to 74,010.30, 110,311.90 and 69,806.71

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Solution

The fourth proportional to 74,010.30, 110,311.90 and 69,806.71 is: 104,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010.30 : 110,311.90 = 69,806.71 : x
  2. Step 2: Convert to fraction form
    74,010.30/110,311.90 = 69,806.71/x
  3. Step 3: Cross multiply
    74,010.30x = 110,311.90 × 69,806.71
  4. Step 4: Simplify right side
    74,010.30x = 7,700,510,362.55
  5. Step 5: Solve for x
    x = 7,700,510,362.55/74,010.30
  6. Step 6: Final answer
    x = 104,046.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.