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Finding the Fourth Proportional to 74,350.59, 102,600.31 and 40,358.31

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Solution

The fourth proportional to 74,350.59, 102,600.31 and 40,358.31 is: 55,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,350.59 : 102,600.31 = 40,358.31 : x
  2. Step 2: Convert to fraction form
    74,350.59/102,600.31 = 40,358.31/x
  3. Step 3: Cross multiply
    74,350.59x = 102,600.31 × 40,358.31
  4. Step 4: Simplify right side
    74,350.59x = 4,140,775,117.08
  5. Step 5: Solve for x
    x = 4,140,775,117.08/74,350.59
  6. Step 6: Final answer
    x = 55,692.57

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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.