Home / 85,620.54-118,149.93-47,887.50

Finding the Fourth Proportional to 85,620.54, 118,149.93 and 47,887.50

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Solution

The fourth proportional to 85,620.54, 118,149.93 and 47,887.50 is: 66,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,620.54 : 118,149.93 = 47,887.50 : x
  2. Step 2: Convert to fraction form
    85,620.54/118,149.93 = 47,887.50/x
  3. Step 3: Cross multiply
    85,620.54x = 118,149.93 × 47,887.50
  4. Step 4: Simplify right side
    85,620.54x = 5,657,904,772.88
  5. Step 5: Solve for x
    x = 5,657,904,772.88/85,620.54
  6. Step 6: Final answer
    x = 66,081.16

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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.