Home / 74,475.32-102,777.92-40,486.10

Finding the Fourth Proportional to 74,475.32, 102,777.92 and 40,486.10

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Solution

The fourth proportional to 74,475.32, 102,777.92 and 40,486.10 is: 55,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,475.32 : 102,777.92 = 40,486.10 : x
  2. Step 2: Convert to fraction form
    74,475.32/102,777.92 = 40,486.10/x
  3. Step 3: Cross multiply
    74,475.32x = 102,777.92 × 40,486.10
  4. Step 4: Simplify right side
    74,475.32x = 4,161,077,146.91
  5. Step 5: Solve for x
    x = 4,161,077,146.91/74,475.32
  6. Step 6: Final answer
    x = 55,871.89

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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.