Home / 72,024.98-99,382.58-40,193.80

Finding the Fourth Proportional to 72,024.98, 99,382.58 and 40,193.80

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Solution

The fourth proportional to 72,024.98, 99,382.58 and 40,193.80 is: 55,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.98 : 99,382.58 = 40,193.80 : x
  2. Step 2: Convert to fraction form
    72,024.98/99,382.58 = 40,193.80/x
  3. Step 3: Cross multiply
    72,024.98x = 99,382.58 × 40,193.80
  4. Step 4: Simplify right side
    72,024.98x = 3,994,563,544.00
  5. Step 5: Solve for x
    x = 3,994,563,544.00/72,024.98
  6. Step 6: Final answer
    x = 55,460.81

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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.