Home / 77,927.45-107,545.43-43,939.11

Finding the Fourth Proportional to 77,927.45, 107,545.43 and 43,939.11

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Solution

The fourth proportional to 77,927.45, 107,545.43 and 43,939.11 is: 60,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.45 : 107,545.43 = 43,939.11 : x
  2. Step 2: Convert to fraction form
    77,927.45/107,545.43 = 43,939.11/x
  3. Step 3: Cross multiply
    77,927.45x = 107,545.43 × 43,939.11
  4. Step 4: Simplify right side
    77,927.45x = 4,725,450,259.07
  5. Step 5: Solve for x
    x = 4,725,450,259.07/77,927.45
  6. Step 6: Final answer
    x = 60,639.10

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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.