Home / 85,771.92-118,276.02-67,838.52

Finding the Fourth Proportional to 85,771.92, 118,276.02 and 67,838.52

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Solution

The fourth proportional to 85,771.92, 118,276.02 and 67,838.52 is: 93,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,771.92 : 118,276.02 = 67,838.52 : x
  2. Step 2: Convert to fraction form
    85,771.92/118,276.02 = 67,838.52/x
  3. Step 3: Cross multiply
    85,771.92x = 118,276.02 × 67,838.52
  4. Step 4: Simplify right side
    85,771.92x = 8,023,670,148.29
  5. Step 5: Solve for x
    x = 8,023,670,148.29/85,771.92
  6. Step 6: Final answer
    x = 93,546.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.