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Finding the Fourth Proportional to 56,366.84, 77,796.78 and 40,277.72

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Solution

The fourth proportional to 56,366.84, 77,796.78 and 40,277.72 is: 55,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,366.84 : 77,796.78 = 40,277.72 : x
  2. Step 2: Convert to fraction form
    56,366.84/77,796.78 = 40,277.72/x
  3. Step 3: Cross multiply
    56,366.84x = 77,796.78 × 40,277.72
  4. Step 4: Simplify right side
    56,366.84x = 3,133,476,921.74
  5. Step 5: Solve for x
    x = 3,133,476,921.74/56,366.84
  6. Step 6: Final answer
    x = 55,590.79

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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.