Home / 85,612.48-118,144.32-47,887.04

Finding the Fourth Proportional to 85,612.48, 118,144.32 and 47,887.04

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Solution

The fourth proportional to 85,612.48, 118,144.32 and 47,887.04 is: 66,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.48 : 118,144.32 = 47,887.04 : x
  2. Step 2: Convert to fraction form
    85,612.48/118,144.32 = 47,887.04/x
  3. Step 3: Cross multiply
    85,612.48x = 118,144.32 × 47,887.04
  4. Step 4: Simplify right side
    85,612.48x = 5,657,581,777.61
  5. Step 5: Solve for x
    x = 5,657,581,777.61/85,612.48
  6. Step 6: Final answer
    x = 66,083.61

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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.