Home / 87,837.06-121,215.54-47,550.83

Finding the Fourth Proportional to 87,837.06, 121,215.54 and 47,550.83

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Solution

The fourth proportional to 87,837.06, 121,215.54 and 47,550.83 is: 65,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.06 : 121,215.54 = 47,550.83 : x
  2. Step 2: Convert to fraction form
    87,837.06/121,215.54 = 47,550.83/x
  3. Step 3: Cross multiply
    87,837.06x = 121,215.54 × 47,550.83
  4. Step 4: Simplify right side
    87,837.06x = 5,763,898,840.66
  5. Step 5: Solve for x
    x = 5,763,898,840.66/87,837.06
  6. Step 6: Final answer
    x = 65,620.35

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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.