Home / 54,640.59-75,411.20-30,771.93

Finding the Fourth Proportional to 54,640.59, 75,411.20 and 30,771.93

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Solution

The fourth proportional to 54,640.59, 75,411.20 and 30,771.93 is: 42,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640.59 : 75,411.20 = 30,771.93 : x
  2. Step 2: Convert to fraction form
    54,640.59/75,411.20 = 30,771.93/x
  3. Step 3: Cross multiply
    54,640.59x = 75,411.20 × 30,771.93
  4. Step 4: Simplify right side
    54,640.59x = 2,320,548,013.76
  5. Step 5: Solve for x
    x = 2,320,548,013.76/54,640.59
  6. Step 6: Final answer
    x = 42,469.31

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1.5x scale

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.