Home / 72,369.28-99,868.44-40,537.92

Finding the Fourth Proportional to 72,369.28, 99,868.44 and 40,537.92

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Solution

The fourth proportional to 72,369.28, 99,868.44 and 40,537.92 is: 55,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,369.28 : 99,868.44 = 40,537.92 : x
  2. Step 2: Convert to fraction form
    72,369.28/99,868.44 = 40,537.92/x
  3. Step 3: Cross multiply
    72,369.28x = 99,868.44 × 40,537.92
  4. Step 4: Simplify right side
    72,369.28x = 4,048,458,831.24
  5. Step 5: Solve for x
    x = 4,048,458,831.24/72,369.28
  6. Step 6: Final answer
    x = 55,941.68

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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.