Home / 78,766.19-118,164.66-25,471.40

Finding the Fourth Proportional to 78,766.19, 118,164.66 and 25,471.40

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Solution

The fourth proportional to 78,766.19, 118,164.66 and 25,471.40 is: 38,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,766.19 : 118,164.66 = 25,471.40 : x
  2. Step 2: Convert to fraction form
    78,766.19/118,164.66 = 25,471.40/x
  3. Step 3: Cross multiply
    78,766.19x = 118,164.66 × 25,471.40
  4. Step 4: Simplify right side
    78,766.19x = 3,009,819,193.37
  5. Step 5: Solve for x
    x = 3,009,819,193.37/78,766.19
  6. Step 6: Final answer
    x = 38,212.07

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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.