Home / 87,837.80-121,215.14-47,550.67

Finding the Fourth Proportional to 87,837.80, 121,215.14 and 47,550.67

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Solution

The fourth proportional to 87,837.80, 121,215.14 and 47,550.67 is: 65,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.80 : 121,215.14 = 47,550.67 : x
  2. Step 2: Convert to fraction form
    87,837.80/121,215.14 = 47,550.67/x
  3. Step 3: Cross multiply
    87,837.80x = 121,215.14 × 47,550.67
  4. Step 4: Simplify right side
    87,837.80x = 5,763,860,580.35
  5. Step 5: Solve for x
    x = 5,763,860,580.35/87,837.80
  6. Step 6: Final answer
    x = 65,619.37

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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.