Home / 90,885.75-125,427.31-50,598.62

Finding the Fourth Proportional to 90,885.75, 125,427.31 and 50,598.62

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Solution

The fourth proportional to 90,885.75, 125,427.31 and 50,598.62 is: 69,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,885.75 : 125,427.31 = 50,598.62 : x
  2. Step 2: Convert to fraction form
    90,885.75/125,427.31 = 50,598.62/x
  3. Step 3: Cross multiply
    90,885.75x = 125,427.31 × 50,598.62
  4. Step 4: Simplify right side
    90,885.75x = 6,346,449,360.87
  5. Step 5: Solve for x
    x = 6,346,449,360.87/90,885.75
  6. Step 6: Final answer
    x = 69,828.87

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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.