Home / 72,220.52-99,669.22-40,392.38

Finding the Fourth Proportional to 72,220.52, 99,669.22 and 40,392.38

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Solution

The fourth proportional to 72,220.52, 99,669.22 and 40,392.38 is: 55,744.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220.52 : 99,669.22 = 40,392.38 : x
  2. Step 2: Convert to fraction form
    72,220.52/99,669.22 = 40,392.38/x
  3. Step 3: Cross multiply
    72,220.52x = 99,669.22 × 40,392.38
  4. Step 4: Simplify right side
    72,220.52x = 4,025,877,008.54
  5. Step 5: Solve for x
    x = 4,025,877,008.54/72,220.52
  6. Step 6: Final answer
    x = 55,744.23

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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.