Home / 72,780.63-109,164.67-44,310.21

Finding the Fourth Proportional to 72,780.63, 109,164.67 and 44,310.21

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Solution

The fourth proportional to 72,780.63, 109,164.67 and 44,310.21 is: 66,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,780.63 : 109,164.67 = 44,310.21 : x
  2. Step 2: Convert to fraction form
    72,780.63/109,164.67 = 44,310.21/x
  3. Step 3: Cross multiply
    72,780.63x = 109,164.67 × 44,310.21
  4. Step 4: Simplify right side
    72,780.63x = 4,837,108,684.91
  5. Step 5: Solve for x
    x = 4,837,108,684.91/72,780.63
  6. Step 6: Final answer
    x = 66,461.49

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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.