Home / 78,789.41-118,184.13-26,199.35

Finding the Fourth Proportional to 78,789.41, 118,184.13 and 26,199.35

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Solution

The fourth proportional to 78,789.41, 118,184.13 and 26,199.35 is: 39,299.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,789.41 : 118,184.13 = 26,199.35 : x
  2. Step 2: Convert to fraction form
    78,789.41/118,184.13 = 26,199.35/x
  3. Step 3: Cross multiply
    78,789.41x = 118,184.13 × 26,199.35
  4. Step 4: Simplify right side
    78,789.41x = 3,096,347,386.32
  5. Step 5: Solve for x
    x = 3,096,347,386.32/78,789.41
  6. Step 6: Final answer
    x = 39,299.03

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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.