Home / 51,192.84-76,811.28-19,612.56

Finding the Fourth Proportional to 51,192.84, 76,811.28 and 19,612.56

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Solution

The fourth proportional to 51,192.84, 76,811.28 and 19,612.56 is: 29,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,192.84 : 76,811.28 = 19,612.56 : x
  2. Step 2: Convert to fraction form
    51,192.84/76,811.28 = 19,612.56/x
  3. Step 3: Cross multiply
    51,192.84x = 76,811.28 × 19,612.56
  4. Step 4: Simplify right side
    51,192.84x = 1,506,465,837.68
  5. Step 5: Solve for x
    x = 1,506,465,837.68/51,192.84
  6. Step 6: Final answer
    x = 29,427.28

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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.