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Finding the Fourth Proportional to 77,159.44, 115,606.88 and 51,811.44

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Solution

The fourth proportional to 77,159.44, 115,606.88 and 51,811.44 is: 77,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,159.44 : 115,606.88 = 51,811.44 : x
  2. Step 2: Convert to fraction form
    77,159.44/115,606.88 = 51,811.44/x
  3. Step 3: Cross multiply
    77,159.44x = 115,606.88 × 51,811.44
  4. Step 4: Simplify right side
    77,159.44x = 5,989,758,926.71
  5. Step 5: Solve for x
    x = 5,989,758,926.71/77,159.44
  6. Step 6: Final answer
    x = 77,628.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.