Home / 72,289.98-99,768.87-43,999.74

Finding the Fourth Proportional to 72,289.98, 99,768.87 and 43,999.74

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Solution

The fourth proportional to 72,289.98, 99,768.87 and 43,999.74 is: 60,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,289.98 : 99,768.87 = 43,999.74 : x
  2. Step 2: Convert to fraction form
    72,289.98/99,768.87 = 43,999.74/x
  3. Step 3: Cross multiply
    72,289.98x = 99,768.87 × 43,999.74
  4. Step 4: Simplify right side
    72,289.98x = 4,389,804,340.09
  5. Step 5: Solve for x
    x = 4,389,804,340.09/72,289.98
  6. Step 6: Final answer
    x = 60,724.94

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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.