Home / 42,750.72-64,125.36-15,048

Finding the Fourth Proportional to 42,750.72, 64,125.36 and 15,048

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Solution

The fourth proportional to 42,750.72, 64,125.36 and 15,048 is: 22,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.72 : 64,125.36 = 15,048 : x
  2. Step 2: Convert to fraction form
    42,750.72/64,125.36 = 15,048/x
  3. Step 3: Cross multiply
    42,750.72x = 64,125.36 × 15,048
  4. Step 4: Simplify right side
    42,750.72x = 964,958,417.28
  5. Step 5: Solve for x
    x = 964,958,417.28/42,750.72
  6. Step 6: Final answer
    x = 22,571.75

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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.