Home / 53,863.40-80,643.19-28,505.47

Finding the Fourth Proportional to 53,863.40, 80,643.19 and 28,505.47

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Solution

The fourth proportional to 53,863.40, 80,643.19 and 28,505.47 is: 42,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863.40 : 80,643.19 = 28,505.47 : x
  2. Step 2: Convert to fraction form
    53,863.40/80,643.19 = 28,505.47/x
  3. Step 3: Cross multiply
    53,863.40x = 80,643.19 × 28,505.47
  4. Step 4: Simplify right side
    53,863.40x = 2,298,772,033.25
  5. Step 5: Solve for x
    x = 2,298,772,033.25/53,863.40
  6. Step 6: Final answer
    x = 42,677.82

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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.