Home / 60,885.30-91,336.50-18,768.76

Finding the Fourth Proportional to 60,885.30, 91,336.50 and 18,768.76

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Solution

The fourth proportional to 60,885.30, 91,336.50 and 18,768.76 is: 28,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,885.30 : 91,336.50 = 18,768.76 : x
  2. Step 2: Convert to fraction form
    60,885.30/91,336.50 = 18,768.76/x
  3. Step 3: Cross multiply
    60,885.30x = 91,336.50 × 18,768.76
  4. Step 4: Simplify right side
    60,885.30x = 1,714,272,847.74
  5. Step 5: Solve for x
    x = 1,714,272,847.74/60,885.30
  6. Step 6: Final answer
    x = 28,155.78

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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.