Home / 78,790.43-118,186.68-26,199.92

Finding the Fourth Proportional to 78,790.43, 118,186.68 and 26,199.92

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Solution

The fourth proportional to 78,790.43, 118,186.68 and 26,199.92 is: 39,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,790.43 : 118,186.68 = 26,199.92 : x
  2. Step 2: Convert to fraction form
    78,790.43/118,186.68 = 26,199.92/x
  3. Step 3: Cross multiply
    78,790.43x = 118,186.68 × 26,199.92
  4. Step 4: Simplify right side
    78,790.43x = 3,096,480,970.13
  5. Step 5: Solve for x
    x = 3,096,480,970.13/78,790.43
  6. Step 6: Final answer
    x = 39,300.22

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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.