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Finding the Fourth Proportional to 77,752.71, 107,200.65 and 50,852.61

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Solution

The fourth proportional to 77,752.71, 107,200.65 and 50,852.61 is: 70,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,752.71 : 107,200.65 = 50,852.61 : x
  2. Step 2: Convert to fraction form
    77,752.71/107,200.65 = 50,852.61/x
  3. Step 3: Cross multiply
    77,752.71x = 107,200.65 × 50,852.61
  4. Step 4: Simplify right side
    77,752.71x = 5,451,432,846.20
  5. Step 5: Solve for x
    x = 5,451,432,846.20/77,752.71
  6. Step 6: Final answer
    x = 70,112.45

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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.