Home / 72,325.92-99,804.23-40,490.49

Finding the Fourth Proportional to 72,325.92, 99,804.23 and 40,490.49

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Solution

The fourth proportional to 72,325.92, 99,804.23 and 40,490.49 is: 55,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,325.92 : 99,804.23 = 40,490.49 : x
  2. Step 2: Convert to fraction form
    72,325.92/99,804.23 = 40,490.49/x
  3. Step 3: Cross multiply
    72,325.92x = 99,804.23 × 40,490.49
  4. Step 4: Simplify right side
    72,325.92x = 4,041,122,500.43
  5. Step 5: Solve for x
    x = 4,041,122,500.43/72,325.92
  6. Step 6: Final answer
    x = 55,873.78

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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.