Home / 72,297.24-99,703.68-61,080.36

Finding the Fourth Proportional to 72,297.24, 99,703.68 and 61,080.36

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Solution

The fourth proportional to 72,297.24, 99,703.68 and 61,080.36 is: 84,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,297.24 : 99,703.68 = 61,080.36 : x
  2. Step 2: Convert to fraction form
    72,297.24/99,703.68 = 61,080.36/x
  3. Step 3: Cross multiply
    72,297.24x = 99,703.68 × 61,080.36
  4. Step 4: Simplify right side
    72,297.24x = 6,089,936,667.72
  5. Step 5: Solve for x
    x = 6,089,936,667.72/72,297.24
  6. Step 6: Final answer
    x = 84,234.70

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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.