Home / 74,316.16-102,556.02-40,324.78

Finding the Fourth Proportional to 74,316.16, 102,556.02 and 40,324.78

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Solution

The fourth proportional to 74,316.16, 102,556.02 and 40,324.78 is: 55,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,316.16 : 102,556.02 = 40,324.78 : x
  2. Step 2: Convert to fraction form
    74,316.16/102,556.02 = 40,324.78/x
  3. Step 3: Cross multiply
    74,316.16x = 102,556.02 × 40,324.78
  4. Step 4: Simplify right side
    74,316.16x = 4,135,548,944.18
  5. Step 5: Solve for x
    x = 4,135,548,944.18/74,316.16
  6. Step 6: Final answer
    x = 55,648.04

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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.