Home / 87,891.57-121,290.08-47,605.23

Finding the Fourth Proportional to 87,891.57, 121,290.08 and 47,605.23

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Solution

The fourth proportional to 87,891.57, 121,290.08 and 47,605.23 is: 65,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.57 : 121,290.08 = 47,605.23 : x
  2. Step 2: Convert to fraction form
    87,891.57/121,290.08 = 47,605.23/x
  3. Step 3: Cross multiply
    87,891.57x = 121,290.08 × 47,605.23
  4. Step 4: Simplify right side
    87,891.57x = 5,774,041,917.09
  5. Step 5: Solve for x
    x = 5,774,041,917.09/87,891.57
  6. Step 6: Final answer
    x = 65,695.06

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1.5x scale

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.