Home / 72,194.88-99,632.04-40,363.77

Finding the Fourth Proportional to 72,194.88, 99,632.04 and 40,363.77

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Solution

The fourth proportional to 72,194.88, 99,632.04 and 40,363.77 is: 55,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,194.88 : 99,632.04 = 40,363.77 : x
  2. Step 2: Convert to fraction form
    72,194.88/99,632.04 = 40,363.77/x
  3. Step 3: Cross multiply
    72,194.88x = 99,632.04 × 40,363.77
  4. Step 4: Simplify right side
    72,194.88x = 4,021,524,747.19
  5. Step 5: Solve for x
    x = 4,021,524,747.19/72,194.88
  6. Step 6: Final answer
    x = 55,703.74

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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.