Home / 57,153.09-85,698.36-45,382.47

Finding the Fourth Proportional to 57,153.09, 85,698.36 and 45,382.47

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Solution

The fourth proportional to 57,153.09, 85,698.36 and 45,382.47 is: 68,048.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.09 : 85,698.36 = 45,382.47 : x
  2. Step 2: Convert to fraction form
    57,153.09/85,698.36 = 45,382.47/x
  3. Step 3: Cross multiply
    57,153.09x = 85,698.36 × 45,382.47
  4. Step 4: Simplify right side
    57,153.09x = 3,889,203,024.84
  5. Step 5: Solve for x
    x = 3,889,203,024.84/57,153.09
  6. Step 6: Final answer
    x = 68,048.87

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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.