Home / 66,130.05-99,175.64-36,109.83

Finding the Fourth Proportional to 66,130.05, 99,175.64 and 36,109.83

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Solution

The fourth proportional to 66,130.05, 99,175.64 and 36,109.83 is: 54,154.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,130.05 : 99,175.64 = 36,109.83 : x
  2. Step 2: Convert to fraction form
    66,130.05/99,175.64 = 36,109.83/x
  3. Step 3: Cross multiply
    66,130.05x = 99,175.64 × 36,109.83
  4. Step 4: Simplify right side
    66,130.05x = 3,581,215,319.99
  5. Step 5: Solve for x
    x = 3,581,215,319.99/66,130.05
  6. Step 6: Final answer
    x = 54,154.13

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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.