Home / 60,299.57-90,449.31-20,856.98

Finding the Fourth Proportional to 60,299.57, 90,449.31 and 20,856.98

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Solution

The fourth proportional to 60,299.57, 90,449.31 and 20,856.98 is: 31,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,299.57 : 90,449.31 = 20,856.98 : x
  2. Step 2: Convert to fraction form
    60,299.57/90,449.31 = 20,856.98/x
  3. Step 3: Cross multiply
    60,299.57x = 90,449.31 × 20,856.98
  4. Step 4: Simplify right side
    60,299.57x = 1,886,499,449.68
  5. Step 5: Solve for x
    x = 1,886,499,449.68/60,299.57
  6. Step 6: Final answer
    x = 31,285.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.