Home / 63,690.10-87,892.38-35,395.78

Finding the Fourth Proportional to 63,690.10, 87,892.38 and 35,395.78

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Solution

The fourth proportional to 63,690.10, 87,892.38 and 35,395.78 is: 48,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,690.10 : 87,892.38 = 35,395.78 : x
  2. Step 2: Convert to fraction form
    63,690.10/87,892.38 = 35,395.78/x
  3. Step 3: Cross multiply
    63,690.10x = 87,892.38 × 35,395.78
  4. Step 4: Simplify right side
    63,690.10x = 3,111,019,346.16
  5. Step 5: Solve for x
    x = 3,111,019,346.16/63,690.10
  6. Step 6: Final answer
    x = 48,846.20

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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.