Home / 78,818.56-118,226.59-36,675.07

Finding the Fourth Proportional to 78,818.56, 118,226.59 and 36,675.07

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Solution

The fourth proportional to 78,818.56, 118,226.59 and 36,675.07 is: 55,012.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.56 : 118,226.59 = 36,675.07 : x
  2. Step 2: Convert to fraction form
    78,818.56/118,226.59 = 36,675.07/x
  3. Step 3: Cross multiply
    78,818.56x = 118,226.59 × 36,675.07
  4. Step 4: Simplify right side
    78,818.56x = 4,335,968,464.11
  5. Step 5: Solve for x
    x = 4,335,968,464.11/78,818.56
  6. Step 6: Final answer
    x = 55,012.02

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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.