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Finding the Fourth Proportional to 54,803.76, 82,156.30 and 19,718.76

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Solution

The fourth proportional to 54,803.76, 82,156.30 and 19,718.76 is: 29,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,803.76 : 82,156.30 = 19,718.76 : x
  2. Step 2: Convert to fraction form
    54,803.76/82,156.30 = 19,718.76/x
  3. Step 3: Cross multiply
    54,803.76x = 82,156.30 × 19,718.76
  4. Step 4: Simplify right side
    54,803.76x = 1,620,020,362.19
  5. Step 5: Solve for x
    x = 1,620,020,362.19/54,803.76
  6. Step 6: Final answer
    x = 29,560.39

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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.