Home / 86,130.35-118,857.66-47,887.92

Finding the Fourth Proportional to 86,130.35, 118,857.66 and 47,887.92

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Solution

The fourth proportional to 86,130.35, 118,857.66 and 47,887.92 is: 66,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,130.35 : 118,857.66 = 47,887.92 : x
  2. Step 2: Convert to fraction form
    86,130.35/118,857.66 = 47,887.92/x
  3. Step 3: Cross multiply
    86,130.35x = 118,857.66 × 47,887.92
  4. Step 4: Simplify right side
    86,130.35x = 5,691,846,113.47
  5. Step 5: Solve for x
    x = 5,691,846,113.47/86,130.35
  6. Step 6: Final answer
    x = 66,084.10

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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.