Home / 74,325.27-102,568.36-40,332.90

Finding the Fourth Proportional to 74,325.27, 102,568.36 and 40,332.90

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Solution

The fourth proportional to 74,325.27, 102,568.36 and 40,332.90 is: 55,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,325.27 : 102,568.36 = 40,332.90 : x
  2. Step 2: Convert to fraction form
    74,325.27/102,568.36 = 40,332.90/x
  3. Step 3: Cross multiply
    74,325.27x = 102,568.36 × 40,332.90
  4. Step 4: Simplify right side
    74,325.27x = 4,136,879,407.04
  5. Step 5: Solve for x
    x = 4,136,879,407.04/74,325.27
  6. Step 6: Final answer
    x = 55,659.12

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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.