Home / 78,923.39-118,384.26-45,622.26

Finding the Fourth Proportional to 78,923.39, 118,384.26 and 45,622.26

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Solution

The fourth proportional to 78,923.39, 118,384.26 and 45,622.26 is: 68,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,923.39 : 118,384.26 = 45,622.26 : x
  2. Step 2: Convert to fraction form
    78,923.39/118,384.26 = 45,622.26/x
  3. Step 3: Cross multiply
    78,923.39x = 118,384.26 × 45,622.26
  4. Step 4: Simplify right side
    78,923.39x = 5,400,957,489.63
  5. Step 5: Solve for x
    x = 5,400,957,489.63/78,923.39
  6. Step 6: Final answer
    x = 68,432.92

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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.