Home / 74,513.12-102,826.04-40,979.12

Finding the Fourth Proportional to 74,513.12, 102,826.04 and 40,979.12

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Solution

The fourth proportional to 74,513.12, 102,826.04 and 40,979.12 is: 56,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,513.12 : 102,826.04 = 40,979.12 : x
  2. Step 2: Convert to fraction form
    74,513.12/102,826.04 = 40,979.12/x
  3. Step 3: Cross multiply
    74,513.12x = 102,826.04 × 40,979.12
  4. Step 4: Simplify right side
    74,513.12x = 4,213,720,632.28
  5. Step 5: Solve for x
    x = 4,213,720,632.28/74,513.12
  6. Step 6: Final answer
    x = 56,550.05

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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.