Home / 53,920.46-80,709.07-30,155.36

Finding the Fourth Proportional to 53,920.46, 80,709.07 and 30,155.36

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Solution

The fourth proportional to 53,920.46, 80,709.07 and 30,155.36 is: 45,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.46 : 80,709.07 = 30,155.36 : x
  2. Step 2: Convert to fraction form
    53,920.46/80,709.07 = 30,155.36/x
  3. Step 3: Cross multiply
    53,920.46x = 80,709.07 × 30,155.36
  4. Step 4: Simplify right side
    53,920.46x = 2,433,811,061.12
  5. Step 5: Solve for x
    x = 2,433,811,061.12/53,920.46
  6. Step 6: Final answer
    x = 45,137.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.