Home / 74,290.29-102,520.16-40,298.84

Finding the Fourth Proportional to 74,290.29, 102,520.16 and 40,298.84

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Solution

The fourth proportional to 74,290.29, 102,520.16 and 40,298.84 is: 55,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,290.29 : 102,520.16 = 40,298.84 : x
  2. Step 2: Convert to fraction form
    74,290.29/102,520.16 = 40,298.84/x
  3. Step 3: Cross multiply
    74,290.29x = 102,520.16 × 40,298.84
  4. Step 4: Simplify right side
    74,290.29x = 4,131,443,579.42
  5. Step 5: Solve for x
    x = 4,131,443,579.42/74,290.29
  6. Step 6: Final answer
    x = 55,612.16

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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.