Home / 53,397.32-73,682.82-30,731.90

Finding the Fourth Proportional to 53,397.32, 73,682.82 and 30,731.90

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Solution

The fourth proportional to 53,397.32, 73,682.82 and 30,731.90 is: 42,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,397.32 : 73,682.82 = 30,731.90 : x
  2. Step 2: Convert to fraction form
    53,397.32/73,682.82 = 30,731.90/x
  3. Step 3: Cross multiply
    53,397.32x = 73,682.82 × 30,731.90
  4. Step 4: Simplify right side
    53,397.32x = 2,264,413,055.96
  5. Step 5: Solve for x
    x = 2,264,413,055.96/53,397.32
  6. Step 6: Final answer
    x = 42,406.87

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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.