Home / 86,129.45-118,844.24-47,887.93

Finding the Fourth Proportional to 86,129.45, 118,844.24 and 47,887.93

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Solution

The fourth proportional to 86,129.45, 118,844.24 and 47,887.93 is: 66,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,129.45 : 118,844.24 = 47,887.93 : x
  2. Step 2: Convert to fraction form
    86,129.45/118,844.24 = 47,887.93/x
  3. Step 3: Cross multiply
    86,129.45x = 118,844.24 × 47,887.93
  4. Step 4: Simplify right side
    86,129.45x = 5,691,204,646.02
  5. Step 5: Solve for x
    x = 5,691,204,646.02/86,129.45
  6. Step 6: Final answer
    x = 66,077.34

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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.