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Finding the Fourth Proportional to 77,351.58, 106,664.13 and 57,250.62

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Solution

The fourth proportional to 77,351.58, 106,664.13 and 57,250.62 is: 78,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,351.58 : 106,664.13 = 57,250.62 : x
  2. Step 2: Convert to fraction form
    77,351.58/106,664.13 = 57,250.62/x
  3. Step 3: Cross multiply
    77,351.58x = 106,664.13 × 57,250.62
  4. Step 4: Simplify right side
    77,351.58x = 6,106,587,574.26
  5. Step 5: Solve for x
    x = 6,106,587,574.26/77,351.58
  6. Step 6: Final answer
    x = 78,945.87

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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.