Home / 72,302.16-99,775.94-40,033.70

Finding the Fourth Proportional to 72,302.16, 99,775.94 and 40,033.70

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Solution

The fourth proportional to 72,302.16, 99,775.94 and 40,033.70 is: 55,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.16 : 99,775.94 = 40,033.70 : x
  2. Step 2: Convert to fraction form
    72,302.16/99,775.94 = 40,033.70/x
  3. Step 3: Cross multiply
    72,302.16x = 99,775.94 × 40,033.70
  4. Step 4: Simplify right side
    72,302.16x = 3,994,400,049.18
  5. Step 5: Solve for x
    x = 3,994,400,049.18/72,302.16
  6. Step 6: Final answer
    x = 55,245.93

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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.