Home / 78,809.41-118,212.97-36,665.92

Finding the Fourth Proportional to 78,809.41, 118,212.97 and 36,665.92

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Solution

The fourth proportional to 78,809.41, 118,212.97 and 36,665.92 is: 54,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,809.41 : 118,212.97 = 36,665.92 : x
  2. Step 2: Convert to fraction form
    78,809.41/118,212.97 = 36,665.92/x
  3. Step 3: Cross multiply
    78,809.41x = 118,212.97 × 36,665.92
  4. Step 4: Simplify right side
    78,809.41x = 4,334,387,425.83
  5. Step 5: Solve for x
    x = 4,334,387,425.83/78,809.41
  6. Step 6: Final answer
    x = 54,998.35

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1.5x scale

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.