Home / 54,438.40-75,125.10-30,565

Finding the Fourth Proportional to 54,438.40, 75,125.10 and 30,565

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Solution

The fourth proportional to 54,438.40, 75,125.10 and 30,565 is: 42,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,438.40 : 75,125.10 = 30,565 : x
  2. Step 2: Convert to fraction form
    54,438.40/75,125.10 = 30,565/x
  3. Step 3: Cross multiply
    54,438.40x = 75,125.10 × 30,565
  4. Step 4: Simplify right side
    54,438.40x = 2,296,198,681.50
  5. Step 5: Solve for x
    x = 2,296,198,681.50/54,438.40
  6. Step 6: Final answer
    x = 42,179.76

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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.