Home / 86,007.30-118,688.19-47,764.68

Finding the Fourth Proportional to 86,007.30, 118,688.19 and 47,764.68

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Solution

The fourth proportional to 86,007.30, 118,688.19 and 47,764.68 is: 65,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,007.30 : 118,688.19 = 47,764.68 : x
  2. Step 2: Convert to fraction form
    86,007.30/118,688.19 = 47,764.68/x
  3. Step 3: Cross multiply
    86,007.30x = 118,688.19 × 47,764.68
  4. Step 4: Simplify right side
    86,007.30x = 5,669,103,415.13
  5. Step 5: Solve for x
    x = 5,669,103,415.13/86,007.30
  6. Step 6: Final answer
    x = 65,914.21

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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.