Home / 72,633.29-100,243.30-40,808.34

Finding the Fourth Proportional to 72,633.29, 100,243.30 and 40,808.34

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Solution

The fourth proportional to 72,633.29, 100,243.30 and 40,808.34 is: 56,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,633.29 : 100,243.30 = 40,808.34 : x
  2. Step 2: Convert to fraction form
    72,633.29/100,243.30 = 40,808.34/x
  3. Step 3: Cross multiply
    72,633.29x = 100,243.30 × 40,808.34
  4. Step 4: Simplify right side
    72,633.29x = 4,090,761,963.86
  5. Step 5: Solve for x
    x = 4,090,761,963.86/72,633.29
  6. Step 6: Final answer
    x = 56,320.76

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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.