Home / 53,643.78-80,403.75-39,392.10

Finding the Fourth Proportional to 53,643.78, 80,403.75 and 39,392.10

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Solution

The fourth proportional to 53,643.78, 80,403.75 and 39,392.10 is: 59,042.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,643.78 : 80,403.75 = 39,392.10 : x
  2. Step 2: Convert to fraction form
    53,643.78/80,403.75 = 39,392.10/x
  3. Step 3: Cross multiply
    53,643.78x = 80,403.75 × 39,392.10
  4. Step 4: Simplify right side
    53,643.78x = 3,167,272,560.38
  5. Step 5: Solve for x
    x = 3,167,272,560.38/53,643.78
  6. Step 6: Final answer
    x = 59,042.68

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1.5x scale

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.