Home / 74,357.10-102,612.84-40,365.57

Finding the Fourth Proportional to 74,357.10, 102,612.84 and 40,365.57

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Solution

The fourth proportional to 74,357.10, 102,612.84 and 40,365.57 is: 55,704.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,357.10 : 102,612.84 = 40,365.57 : x
  2. Step 2: Convert to fraction form
    74,357.10/102,612.84 = 40,365.57/x
  3. Step 3: Cross multiply
    74,357.10x = 102,612.84 × 40,365.57
  4. Step 4: Simplify right side
    74,357.10x = 4,142,025,775.92
  5. Step 5: Solve for x
    x = 4,142,025,775.92/74,357.10
  6. Step 6: Final answer
    x = 55,704.51

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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.