Home / 55,031.75-75,944.72-30,832.45

Finding the Fourth Proportional to 55,031.75, 75,944.72 and 30,832.45

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Solution

The fourth proportional to 55,031.75, 75,944.72 and 30,832.45 is: 42,549.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.75 : 75,944.72 = 30,832.45 : x
  2. Step 2: Convert to fraction form
    55,031.75/75,944.72 = 30,832.45/x
  3. Step 3: Cross multiply
    55,031.75x = 75,944.72 × 30,832.45
  4. Step 4: Simplify right side
    55,031.75x = 2,341,561,669.38
  5. Step 5: Solve for x
    x = 2,341,561,669.38/55,031.75
  6. Step 6: Final answer
    x = 42,549.29

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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.