Home / 78,984.42-118,474.20-26,394.36

Finding the Fourth Proportional to 78,984.42, 118,474.20 and 26,394.36

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Solution

The fourth proportional to 78,984.42, 118,474.20 and 26,394.36 is: 39,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984.42 : 118,474.20 = 26,394.36 : x
  2. Step 2: Convert to fraction form
    78,984.42/118,474.20 = 26,394.36/x
  3. Step 3: Cross multiply
    78,984.42x = 118,474.20 × 26,394.36
  4. Step 4: Simplify right side
    78,984.42x = 3,127,050,685.51
  5. Step 5: Solve for x
    x = 3,127,050,685.51/78,984.42
  6. Step 6: Final answer
    x = 39,590.73

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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.