Home / 66,742.19-92,095.13-39,879.02

Finding the Fourth Proportional to 66,742.19, 92,095.13 and 39,879.02

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Solution

The fourth proportional to 66,742.19, 92,095.13 and 39,879.02 is: 55,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,742.19 : 92,095.13 = 39,879.02 : x
  2. Step 2: Convert to fraction form
    66,742.19/92,095.13 = 39,879.02/x
  3. Step 3: Cross multiply
    66,742.19x = 92,095.13 × 39,879.02
  4. Step 4: Simplify right side
    66,742.19x = 3,672,662,871.30
  5. Step 5: Solve for x
    x = 3,672,662,871.30/66,742.19
  6. Step 6: Final answer
    x = 55,027.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.