Home / 40,769.64-61,155.63-11,187.72

Finding the Fourth Proportional to 40,769.64, 61,155.63 and 11,187.72

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Solution

The fourth proportional to 40,769.64, 61,155.63 and 11,187.72 is: 16,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,769.64 : 61,155.63 = 11,187.72 : x
  2. Step 2: Convert to fraction form
    40,769.64/61,155.63 = 11,187.72/x
  3. Step 3: Cross multiply
    40,769.64x = 61,155.63 × 11,187.72
  4. Step 4: Simplify right side
    40,769.64x = 684,192,064.86
  5. Step 5: Solve for x
    x = 684,192,064.86/40,769.64
  6. Step 6: Final answer
    x = 16,781.90

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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.