Home / 72,023.86-99,381.03-40,192.68

Finding the Fourth Proportional to 72,023.86, 99,381.03 and 40,192.68

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Solution

The fourth proportional to 72,023.86, 99,381.03 and 40,192.68 is: 55,459.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,023.86 : 99,381.03 = 40,192.68 : x
  2. Step 2: Convert to fraction form
    72,023.86/99,381.03 = 40,192.68/x
  3. Step 3: Cross multiply
    72,023.86x = 99,381.03 × 40,192.68
  4. Step 4: Simplify right side
    72,023.86x = 3,994,389,936.86
  5. Step 5: Solve for x
    x = 3,994,389,936.86/72,023.86
  6. Step 6: Final answer
    x = 55,459.26

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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.