Home / 72,742.05-100,376.93-40,910.27

Finding the Fourth Proportional to 72,742.05, 100,376.93 and 40,910.27

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Solution

The fourth proportional to 72,742.05, 100,376.93 and 40,910.27 is: 56,452.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,742.05 : 100,376.93 = 40,910.27 : x
  2. Step 2: Convert to fraction form
    72,742.05/100,376.93 = 40,910.27/x
  3. Step 3: Cross multiply
    72,742.05x = 100,376.93 × 40,910.27
  4. Step 4: Simplify right side
    72,742.05x = 4,106,446,908.46
  5. Step 5: Solve for x
    x = 4,106,446,908.46/72,742.05
  6. Step 6: Final answer
    x = 56,452.17

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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.