Home / 78,440.52-117,567.36-36,261.48

Finding the Fourth Proportional to 78,440.52, 117,567.36 and 36,261.48

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Solution

The fourth proportional to 78,440.52, 117,567.36 and 36,261.48 is: 54,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,440.52 : 117,567.36 = 36,261.48 : x
  2. Step 2: Convert to fraction form
    78,440.52/117,567.36 = 36,261.48/x
  3. Step 3: Cross multiply
    78,440.52x = 117,567.36 × 36,261.48
  4. Step 4: Simplify right side
    78,440.52x = 4,263,166,473.29
  5. Step 5: Solve for x
    x = 4,263,166,473.29/78,440.52
  6. Step 6: Final answer
    x = 54,349.03

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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.