Home / 72,303.24-99,777.48-40,472.12

Finding the Fourth Proportional to 72,303.24, 99,777.48 and 40,472.12

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Solution

The fourth proportional to 72,303.24, 99,777.48 and 40,472.12 is: 55,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,303.24 : 99,777.48 = 40,472.12 : x
  2. Step 2: Convert to fraction form
    72,303.24/99,777.48 = 40,472.12/x
  3. Step 3: Cross multiply
    72,303.24x = 99,777.48 × 40,472.12
  4. Step 4: Simplify right side
    72,303.24x = 4,038,206,143.86
  5. Step 5: Solve for x
    x = 4,038,206,143.86/72,303.24
  6. Step 6: Final answer
    x = 55,850.97

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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.