Home / 83,829.23-115,656-47,526.78

Finding the Fourth Proportional to 83,829.23, 115,656 and 47,526.78

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Solution

The fourth proportional to 83,829.23, 115,656 and 47,526.78 is: 65,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,829.23 : 115,656 = 47,526.78 : x
  2. Step 2: Convert to fraction form
    83,829.23/115,656 = 47,526.78/x
  3. Step 3: Cross multiply
    83,829.23x = 115,656 × 47,526.78
  4. Step 4: Simplify right side
    83,829.23x = 5,496,757,267.68
  5. Step 5: Solve for x
    x = 5,496,757,267.68/83,829.23
  6. Step 6: Final answer
    x = 65,570.89

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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.