Home / 54,639.16-75,403.44-30,766.72

Finding the Fourth Proportional to 54,639.16, 75,403.44 and 30,766.72

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Solution

The fourth proportional to 54,639.16, 75,403.44 and 30,766.72 is: 42,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,639.16 : 75,403.44 = 30,766.72 : x
  2. Step 2: Convert to fraction form
    54,639.16/75,403.44 = 30,766.72/x
  3. Step 3: Cross multiply
    54,639.16x = 75,403.44 × 30,766.72
  4. Step 4: Simplify right side
    54,639.16x = 2,319,916,525.52
  5. Step 5: Solve for x
    x = 2,319,916,525.52/54,639.16
  6. Step 6: Final answer
    x = 42,458.86

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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.