Home / 72,270.19-99,729.61-40,006.02

Finding the Fourth Proportional to 72,270.19, 99,729.61 and 40,006.02

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Solution

The fourth proportional to 72,270.19, 99,729.61 and 40,006.02 is: 55,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.19 : 99,729.61 = 40,006.02 : x
  2. Step 2: Convert to fraction form
    72,270.19/99,729.61 = 40,006.02/x
  3. Step 3: Cross multiply
    72,270.19x = 99,729.61 × 40,006.02
  4. Step 4: Simplify right side
    72,270.19x = 3,989,784,710.28
  5. Step 5: Solve for x
    x = 3,989,784,710.28/72,270.19
  6. Step 6: Final answer
    x = 55,206.51

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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.