Home / 63,380.94-87,465.81-40,720.06

Finding the Fourth Proportional to 63,380.94, 87,465.81 and 40,720.06

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Solution

The fourth proportional to 63,380.94, 87,465.81 and 40,720.06 is: 56,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,380.94 : 87,465.81 = 40,720.06 : x
  2. Step 2: Convert to fraction form
    63,380.94/87,465.81 = 40,720.06/x
  3. Step 3: Cross multiply
    63,380.94x = 87,465.81 × 40,720.06
  4. Step 4: Simplify right side
    63,380.94x = 3,561,613,031.15
  5. Step 5: Solve for x
    x = 3,561,613,031.15/63,380.94
  6. Step 6: Final answer
    x = 56,193.76

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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.