Home / 66,411.32-99,631.52-19,667.84

Finding the Fourth Proportional to 66,411.32, 99,631.52 and 19,667.84

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Solution

The fourth proportional to 66,411.32, 99,631.52 and 19,667.84 is: 29,506.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.32 : 99,631.52 = 19,667.84 : x
  2. Step 2: Convert to fraction form
    66,411.32/99,631.52 = 19,667.84/x
  3. Step 3: Cross multiply
    66,411.32x = 99,631.52 × 19,667.84
  4. Step 4: Simplify right side
    66,411.32x = 1,959,536,794.32
  5. Step 5: Solve for x
    x = 1,959,536,794.32/66,411.32
  6. Step 6: Final answer
    x = 29,506.07

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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.