Home / 72,499.23-100,043.76-40,235.58

Finding the Fourth Proportional to 72,499.23, 100,043.76 and 40,235.58

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Solution

The fourth proportional to 72,499.23, 100,043.76 and 40,235.58 is: 55,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,499.23 : 100,043.76 = 40,235.58 : x
  2. Step 2: Convert to fraction form
    72,499.23/100,043.76 = 40,235.58/x
  3. Step 3: Cross multiply
    72,499.23x = 100,043.76 × 40,235.58
  4. Step 4: Simplify right side
    72,499.23x = 4,025,318,708.98
  5. Step 5: Solve for x
    x = 4,025,318,708.98/72,499.23
  6. Step 6: Final answer
    x = 55,522.23

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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.