Home / 66,223.93-99,339.34-21,854.15

Finding the Fourth Proportional to 66,223.93, 99,339.34 and 21,854.15

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Solution

The fourth proportional to 66,223.93, 99,339.34 and 21,854.15 is: 32,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223.93 : 99,339.34 = 21,854.15 : x
  2. Step 2: Convert to fraction form
    66,223.93/99,339.34 = 21,854.15/x
  3. Step 3: Cross multiply
    66,223.93x = 99,339.34 × 21,854.15
  4. Step 4: Simplify right side
    66,223.93x = 2,170,976,367.88
  5. Step 5: Solve for x
    x = 2,170,976,367.88/66,223.93
  6. Step 6: Final answer
    x = 32,782.35

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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.