Home / 72,024.88-99,400.95-39,765.26

Finding the Fourth Proportional to 72,024.88, 99,400.95 and 39,765.26

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Solution

The fourth proportional to 72,024.88, 99,400.95 and 39,765.26 is: 54,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.88 : 99,400.95 = 39,765.26 : x
  2. Step 2: Convert to fraction form
    72,024.88/99,400.95 = 39,765.26/x
  3. Step 3: Cross multiply
    72,024.88x = 99,400.95 × 39,765.26
  4. Step 4: Simplify right side
    72,024.88x = 3,952,704,757.66
  5. Step 5: Solve for x
    x = 3,952,704,757.66/72,024.88
  6. Step 6: Final answer
    x = 54,879.71

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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.