Home / 66,267.53-99,386.37-18,881.65

Finding the Fourth Proportional to 66,267.53, 99,386.37 and 18,881.65

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Solution

The fourth proportional to 66,267.53, 99,386.37 and 18,881.65 is: 28,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267.53 : 99,386.37 = 18,881.65 : x
  2. Step 2: Convert to fraction form
    66,267.53/99,386.37 = 18,881.65/x
  3. Step 3: Cross multiply
    66,267.53x = 99,386.37 × 18,881.65
  4. Step 4: Simplify right side
    66,267.53x = 1,876,578,404.64
  5. Step 5: Solve for x
    x = 1,876,578,404.64/66,267.53
  6. Step 6: Final answer
    x = 28,318.22

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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.