Home / 85,750.43-118,276.54-60,310.76

Finding the Fourth Proportional to 85,750.43, 118,276.54 and 60,310.76

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Solution

The fourth proportional to 85,750.43, 118,276.54 and 60,310.76 is: 83,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,750.43 : 118,276.54 = 60,310.76 : x
  2. Step 2: Convert to fraction form
    85,750.43/118,276.54 = 60,310.76/x
  3. Step 3: Cross multiply
    85,750.43x = 118,276.54 × 60,310.76
  4. Step 4: Simplify right side
    85,750.43x = 7,133,347,275.41
  5. Step 5: Solve for x
    x = 7,133,347,275.41/85,750.43
  6. Step 6: Final answer
    x = 83,187.31

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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.