Home / 72,741.24-100,381.86-40,910.14

Finding the Fourth Proportional to 72,741.24, 100,381.86 and 40,910.14

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Solution

The fourth proportional to 72,741.24, 100,381.86 and 40,910.14 is: 56,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,741.24 : 100,381.86 = 40,910.14 : x
  2. Step 2: Convert to fraction form
    72,741.24/100,381.86 = 40,910.14/x
  3. Step 3: Cross multiply
    72,741.24x = 100,381.86 × 40,910.14
  4. Step 4: Simplify right side
    72,741.24x = 4,106,635,674.15
  5. Step 5: Solve for x
    x = 4,106,635,674.15/72,741.24
  6. Step 6: Final answer
    x = 56,455.40

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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.