Home / 78,848.64-118,227.51-53,918.89

Finding the Fourth Proportional to 78,848.64, 118,227.51 and 53,918.89

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Solution

The fourth proportional to 78,848.64, 118,227.51 and 53,918.89 is: 80,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.64 : 118,227.51 = 53,918.89 : x
  2. Step 2: Convert to fraction form
    78,848.64/118,227.51 = 53,918.89/x
  3. Step 3: Cross multiply
    78,848.64x = 118,227.51 × 53,918.89
  4. Step 4: Simplify right side
    78,848.64x = 6,374,696,219.43
  5. Step 5: Solve for x
    x = 6,374,696,219.43/78,848.64
  6. Step 6: Final answer
    x = 80,847.26

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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.