Home / 87,994-121,432.26-50,290.12

Finding the Fourth Proportional to 87,994, 121,432.26 and 50,290.12

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Solution

The fourth proportional to 87,994, 121,432.26 and 50,290.12 is: 69,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,994 : 121,432.26 = 50,290.12 : x
  2. Step 2: Convert to fraction form
    87,994/121,432.26 = 50,290.12/x
  3. Step 3: Cross multiply
    87,994x = 121,432.26 × 50,290.12
  4. Step 4: Simplify right side
    87,994x = 6,106,842,927.27
  5. Step 5: Solve for x
    x = 6,106,842,927.27/87,994
  6. Step 6: Final answer
    x = 69,400.67

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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.