Home / 78,851.60-118,296.32-26,261.56

Finding the Fourth Proportional to 78,851.60, 118,296.32 and 26,261.56

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Solution

The fourth proportional to 78,851.60, 118,296.32 and 26,261.56 is: 39,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.60 : 118,296.32 = 26,261.56 : x
  2. Step 2: Convert to fraction form
    78,851.60/118,296.32 = 26,261.56/x
  3. Step 3: Cross multiply
    78,851.60x = 118,296.32 × 26,261.56
  4. Step 4: Simplify right side
    78,851.60x = 3,106,645,905.46
  5. Step 5: Solve for x
    x = 3,106,645,905.46/78,851.60
  6. Step 6: Final answer
    x = 39,398.64

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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.