Home / 74,514.12-102,827.42-40,980.12

Finding the Fourth Proportional to 74,514.12, 102,827.42 and 40,980.12

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Solution

The fourth proportional to 74,514.12, 102,827.42 and 40,980.12 is: 56,551.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,514.12 : 102,827.42 = 40,980.12 : x
  2. Step 2: Convert to fraction form
    74,514.12/102,827.42 = 40,980.12/x
  3. Step 3: Cross multiply
    74,514.12x = 102,827.42 × 40,980.12
  4. Step 4: Simplify right side
    74,514.12x = 4,213,880,010.89
  5. Step 5: Solve for x
    x = 4,213,880,010.89/74,514.12
  6. Step 6: Final answer
    x = 56,551.43

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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.