Home / 78,827.52-118,261.76-39,383.04

Finding the Fourth Proportional to 78,827.52, 118,261.76 and 39,383.04

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Solution

The fourth proportional to 78,827.52, 118,261.76 and 39,383.04 is: 59,084.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,827.52 : 118,261.76 = 39,383.04 : x
  2. Step 2: Convert to fraction form
    78,827.52/118,261.76 = 39,383.04/x
  3. Step 3: Cross multiply
    78,827.52x = 118,261.76 × 39,383.04
  4. Step 4: Simplify right side
    78,827.52x = 4,657,507,624.55
  5. Step 5: Solve for x
    x = 4,657,507,624.55/78,827.52
  6. Step 6: Final answer
    x = 59,084.79

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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.