Home / 86,170.77-118,913.96-47,929.50

Finding the Fourth Proportional to 86,170.77, 118,913.96 and 47,929.50

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Solution

The fourth proportional to 86,170.77, 118,913.96 and 47,929.50 is: 66,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,170.77 : 118,913.96 = 47,929.50 : x
  2. Step 2: Convert to fraction form
    86,170.77/118,913.96 = 47,929.50/x
  3. Step 3: Cross multiply
    86,170.77x = 118,913.96 × 47,929.50
  4. Step 4: Simplify right side
    86,170.77x = 5,699,486,645.82
  5. Step 5: Solve for x
    x = 5,699,486,645.82/86,170.77
  6. Step 6: Final answer
    x = 66,141.76

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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.