Home / 42,718.43-64,072.78-11,551.25

Finding the Fourth Proportional to 42,718.43, 64,072.78 and 11,551.25

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Solution

The fourth proportional to 42,718.43, 64,072.78 and 11,551.25 is: 17,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,718.43 : 64,072.78 = 11,551.25 : x
  2. Step 2: Convert to fraction form
    42,718.43/64,072.78 = 11,551.25/x
  3. Step 3: Cross multiply
    42,718.43x = 64,072.78 × 11,551.25
  4. Step 4: Simplify right side
    42,718.43x = 740,120,699.98
  5. Step 5: Solve for x
    x = 740,120,699.98/42,718.43
  6. Step 6: Final answer
    x = 17,325.56

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1.5x scale

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.