Home / 72,190.83-99,620.48-39,923.35

Finding the Fourth Proportional to 72,190.83, 99,620.48 and 39,923.35

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Solution

The fourth proportional to 72,190.83, 99,620.48 and 39,923.35 is: 55,092.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,190.83 : 99,620.48 = 39,923.35 : x
  2. Step 2: Convert to fraction form
    72,190.83/99,620.48 = 39,923.35/x
  3. Step 3: Cross multiply
    72,190.83x = 99,620.48 × 39,923.35
  4. Step 4: Simplify right side
    72,190.83x = 3,977,182,592.49
  5. Step 5: Solve for x
    x = 3,977,182,592.49/72,190.83
  6. Step 6: Final answer
    x = 55,092.63

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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.