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Finding the Fourth Proportional to 76,662.84, 114,994.80 and 26,742.78

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Solution

The fourth proportional to 76,662.84, 114,994.80 and 26,742.78 is: 40,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,662.84 : 114,994.80 = 26,742.78 : x
  2. Step 2: Convert to fraction form
    76,662.84/114,994.80 = 26,742.78/x
  3. Step 3: Cross multiply
    76,662.84x = 114,994.80 × 26,742.78
  4. Step 4: Simplify right side
    76,662.84x = 3,075,280,637.54
  5. Step 5: Solve for x
    x = 3,075,280,637.54/76,662.84
  6. Step 6: Final answer
    x = 40,114.36

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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.