Home / 66,239.77-99,360.79-18,856.08

Finding the Fourth Proportional to 66,239.77, 99,360.79 and 18,856.08

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Solution

The fourth proportional to 66,239.77, 99,360.79 and 18,856.08 is: 28,284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.77 : 99,360.79 = 18,856.08 : x
  2. Step 2: Convert to fraction form
    66,239.77/99,360.79 = 18,856.08/x
  3. Step 3: Cross multiply
    66,239.77x = 99,360.79 × 18,856.08
  4. Step 4: Simplify right side
    66,239.77x = 1,873,555,005.10
  5. Step 5: Solve for x
    x = 1,873,555,005.10/66,239.77
  6. Step 6: Final answer
    x = 28,284.44

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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.