Home / 87,971.66-121,397.64-47,684.56

Finding the Fourth Proportional to 87,971.66, 121,397.64 and 47,684.56

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Solution

The fourth proportional to 87,971.66, 121,397.64 and 47,684.56 is: 65,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,971.66 : 121,397.64 = 47,684.56 : x
  2. Step 2: Convert to fraction form
    87,971.66/121,397.64 = 47,684.56/x
  3. Step 3: Cross multiply
    87,971.66x = 121,397.64 × 47,684.56
  4. Step 4: Simplify right side
    87,971.66x = 5,788,792,452.32
  5. Step 5: Solve for x
    x = 5,788,792,452.32/87,971.66
  6. Step 6: Final answer
    x = 65,802.92

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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.