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Finding the Fourth Proportional to 66,375.52, 99,563.28 and 19,624.76

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Solution

The fourth proportional to 66,375.52, 99,563.28 and 19,624.76 is: 29,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.52 : 99,563.28 = 19,624.76 : x
  2. Step 2: Convert to fraction form
    66,375.52/99,563.28 = 19,624.76/x
  3. Step 3: Cross multiply
    66,375.52x = 99,563.28 × 19,624.76
  4. Step 4: Simplify right side
    66,375.52x = 1,953,905,474.81
  5. Step 5: Solve for x
    x = 1,953,905,474.81/66,375.52
  6. Step 6: Final answer
    x = 29,437.14

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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.