Home / 66,142.23-99,109.67-56,240.79

Finding the Fourth Proportional to 66,142.23, 99,109.67 and 56,240.79

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Solution

The fourth proportional to 66,142.23, 99,109.67 and 56,240.79 is: 84,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142.23 : 99,109.67 = 56,240.79 : x
  2. Step 2: Convert to fraction form
    66,142.23/99,109.67 = 56,240.79/x
  3. Step 3: Cross multiply
    66,142.23x = 99,109.67 × 56,240.79
  4. Step 4: Simplify right side
    66,142.23x = 5,574,005,856.24
  5. Step 5: Solve for x
    x = 5,574,005,856.24/66,142.23
  6. Step 6: Final answer
    x = 84,273.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.