Home / 87,941.57-121,359.05-47,656.32

Finding the Fourth Proportional to 87,941.57, 121,359.05 and 47,656.32

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Solution

The fourth proportional to 87,941.57, 121,359.05 and 47,656.32 is: 65,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,941.57 : 121,359.05 = 47,656.32 : x
  2. Step 2: Convert to fraction form
    87,941.57/121,359.05 = 47,656.32/x
  3. Step 3: Cross multiply
    87,941.57x = 121,359.05 × 47,656.32
  4. Step 4: Simplify right side
    87,941.57x = 5,783,525,483.41
  5. Step 5: Solve for x
    x = 5,783,525,483.41/87,941.57
  6. Step 6: Final answer
    x = 65,765.55

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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.