Home / 85,620.83-118,180.49-49,817.76

Finding the Fourth Proportional to 85,620.83, 118,180.49 and 49,817.76

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Solution

The fourth proportional to 85,620.83, 118,180.49 and 49,817.76 is: 68,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,620.83 : 118,180.49 = 49,817.76 : x
  2. Step 2: Convert to fraction form
    85,620.83/118,180.49 = 49,817.76/x
  3. Step 3: Cross multiply
    85,620.83x = 118,180.49 × 49,817.76
  4. Step 4: Simplify right side
    85,620.83x = 5,887,487,287.50
  5. Step 5: Solve for x
    x = 5,887,487,287.50/85,620.83
  6. Step 6: Final answer
    x = 68,762.32

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1.5x scale

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.