Home / 54,512.10-75,225.78-30,643.56

Finding the Fourth Proportional to 54,512.10, 75,225.78 and 30,643.56

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Solution

The fourth proportional to 54,512.10, 75,225.78 and 30,643.56 is: 42,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,512.10 : 75,225.78 = 30,643.56 : x
  2. Step 2: Convert to fraction form
    54,512.10/75,225.78 = 30,643.56/x
  3. Step 3: Cross multiply
    54,512.10x = 75,225.78 × 30,643.56
  4. Step 4: Simplify right side
    54,512.10x = 2,305,185,702.98
  5. Step 5: Solve for x
    x = 2,305,185,702.98/54,512.10
  6. Step 6: Final answer
    x = 42,287.60

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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.