Home / 74,142.33-102,316.46-40,151.08

Finding the Fourth Proportional to 74,142.33, 102,316.46 and 40,151.08

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Solution

The fourth proportional to 74,142.33, 102,316.46 and 40,151.08 is: 55,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,142.33 : 102,316.46 = 40,151.08 : x
  2. Step 2: Convert to fraction form
    74,142.33/102,316.46 = 40,151.08/x
  3. Step 3: Cross multiply
    74,142.33x = 102,316.46 × 40,151.08
  4. Step 4: Simplify right side
    74,142.33x = 4,108,116,370.78
  5. Step 5: Solve for x
    x = 4,108,116,370.78/74,142.33
  6. Step 6: Final answer
    x = 55,408.51

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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.