Home / 72,024.23-99,381.55-40,193.05

Finding the Fourth Proportional to 72,024.23, 99,381.55 and 40,193.05

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Solution

The fourth proportional to 72,024.23, 99,381.55 and 40,193.05 is: 55,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.23 : 99,381.55 = 40,193.05 : x
  2. Step 2: Convert to fraction form
    72,024.23/99,381.55 = 40,193.05/x
  3. Step 3: Cross multiply
    72,024.23x = 99,381.55 × 40,193.05
  4. Step 4: Simplify right side
    72,024.23x = 3,994,447,608.23
  5. Step 5: Solve for x
    x = 3,994,447,608.23/72,024.23
  6. Step 6: Final answer
    x = 55,459.78

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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.