Home / 72,597.42-100,178.73-40,760.17

Finding the Fourth Proportional to 72,597.42, 100,178.73 and 40,760.17

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Solution

The fourth proportional to 72,597.42, 100,178.73 and 40,760.17 is: 56,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,597.42 : 100,178.73 = 40,760.17 : x
  2. Step 2: Convert to fraction form
    72,597.42/100,178.73 = 40,760.17/x
  3. Step 3: Cross multiply
    72,597.42x = 100,178.73 × 40,760.17
  4. Step 4: Simplify right side
    72,597.42x = 4,083,301,814.74
  5. Step 5: Solve for x
    x = 4,083,301,814.74/72,597.42
  6. Step 6: Final answer
    x = 56,245.83

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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.