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Finding the Fourth Proportional to 74,513.08, 102,826 and 40,979.08

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Solution

The fourth proportional to 74,513.08, 102,826 and 40,979.08 is: 56,550.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,513.08 : 102,826 = 40,979.08 : x
  2. Step 2: Convert to fraction form
    74,513.08/102,826 = 40,979.08/x
  3. Step 3: Cross multiply
    74,513.08x = 102,826 × 40,979.08
  4. Step 4: Simplify right side
    74,513.08x = 4,213,714,880.08
  5. Step 5: Solve for x
    x = 4,213,714,880.08/74,513.08
  6. Step 6: Final answer
    x = 56,550.00

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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.