Home / 72,023.73-99,380.86-40,192.55

Finding the Fourth Proportional to 72,023.73, 99,380.86 and 40,192.55

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Solution

The fourth proportional to 72,023.73, 99,380.86 and 40,192.55 is: 55,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,023.73 : 99,380.86 = 40,192.55 : x
  2. Step 2: Convert to fraction form
    72,023.73/99,380.86 = 40,192.55/x
  3. Step 3: Cross multiply
    72,023.73x = 99,380.86 × 40,192.55
  4. Step 4: Simplify right side
    72,023.73x = 3,994,370,084.11
  5. Step 5: Solve for x
    x = 3,994,370,084.11/72,023.73
  6. Step 6: Final answer
    x = 55,459.09

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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.