Home / 72,052.41-99,428.20-40,223.33

Finding the Fourth Proportional to 72,052.41, 99,428.20 and 40,223.33

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Solution

The fourth proportional to 72,052.41, 99,428.20 and 40,223.33 is: 55,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.41 : 99,428.20 = 40,223.33 : x
  2. Step 2: Convert to fraction form
    72,052.41/99,428.20 = 40,223.33/x
  3. Step 3: Cross multiply
    72,052.41x = 99,428.20 × 40,223.33
  4. Step 4: Simplify right side
    72,052.41x = 3,999,333,299.91
  5. Step 5: Solve for x
    x = 3,999,333,299.91/72,052.41
  6. Step 6: Final answer
    x = 55,505.89

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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.