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Finding the Fourth Proportional to 51,366.66, 77,090.16 and 26,405.70

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Solution

The fourth proportional to 51,366.66, 77,090.16 and 26,405.70 is: 39,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,366.66 : 77,090.16 = 26,405.70 : x
  2. Step 2: Convert to fraction form
    51,366.66/77,090.16 = 26,405.70/x
  3. Step 3: Cross multiply
    51,366.66x = 77,090.16 × 26,405.70
  4. Step 4: Simplify right side
    51,366.66x = 2,035,619,637.91
  5. Step 5: Solve for x
    x = 2,035,619,637.91/51,366.66
  6. Step 6: Final answer
    x = 39,629.20

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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.