Home / 72,769.55-100,414.84-40,937.77

Finding the Fourth Proportional to 72,769.55, 100,414.84 and 40,937.77

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Solution

The fourth proportional to 72,769.55, 100,414.84 and 40,937.77 is: 56,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769.55 : 100,414.84 = 40,937.77 : x
  2. Step 2: Convert to fraction form
    72,769.55/100,414.84 = 40,937.77/x
  3. Step 3: Cross multiply
    72,769.55x = 100,414.84 × 40,937.77
  4. Step 4: Simplify right side
    72,769.55x = 4,110,758,917.74
  5. Step 5: Solve for x
    x = 4,110,758,917.74/72,769.55
  6. Step 6: Final answer
    x = 56,490.10

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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.