Home / 86,207.45-118,971.61-47,975.51

Finding the Fourth Proportional to 86,207.45, 118,971.61 and 47,975.51

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Solution

The fourth proportional to 86,207.45, 118,971.61 and 47,975.51 is: 66,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,207.45 : 118,971.61 = 47,975.51 : x
  2. Step 2: Convert to fraction form
    86,207.45/118,971.61 = 47,975.51/x
  3. Step 3: Cross multiply
    86,207.45x = 118,971.61 × 47,975.51
  4. Step 4: Simplify right side
    86,207.45x = 5,707,723,842.76
  5. Step 5: Solve for x
    x = 5,707,723,842.76/86,207.45
  6. Step 6: Final answer
    x = 66,209.18

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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.