Home / 77,842.16-107,336.76-52,647.92

Finding the Fourth Proportional to 77,842.16, 107,336.76 and 52,647.92

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Solution

The fourth proportional to 77,842.16, 107,336.76 and 52,647.92 is: 72,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,842.16 : 107,336.76 = 52,647.92 : x
  2. Step 2: Convert to fraction form
    77,842.16/107,336.76 = 52,647.92/x
  3. Step 3: Cross multiply
    77,842.16x = 107,336.76 × 52,647.92
  4. Step 4: Simplify right side
    77,842.16x = 5,651,057,153.54
  5. Step 5: Solve for x
    x = 5,651,057,153.54/77,842.16
  6. Step 6: Final answer
    x = 72,596.36

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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.