Home / 66,411.42-99,631.68-19,667.94

Finding the Fourth Proportional to 66,411.42, 99,631.68 and 19,667.94

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Solution

The fourth proportional to 66,411.42, 99,631.68 and 19,667.94 is: 29,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.42 : 99,631.68 = 19,667.94 : x
  2. Step 2: Convert to fraction form
    66,411.42/99,631.68 = 19,667.94/x
  3. Step 3: Cross multiply
    66,411.42x = 99,631.68 × 19,667.94
  4. Step 4: Simplify right side
    66,411.42x = 1,959,549,904.34
  5. Step 5: Solve for x
    x = 1,959,549,904.34/66,411.42
  6. Step 6: Final answer
    x = 29,506.22

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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.