Home / 42,746.08-64,126.44-13,163.36

Finding the Fourth Proportional to 42,746.08, 64,126.44 and 13,163.36

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Solution

The fourth proportional to 42,746.08, 64,126.44 and 13,163.36 is: 19,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.08 : 64,126.44 = 13,163.36 : x
  2. Step 2: Convert to fraction form
    42,746.08/64,126.44 = 13,163.36/x
  3. Step 3: Cross multiply
    42,746.08x = 64,126.44 × 13,163.36
  4. Step 4: Simplify right side
    42,746.08x = 844,119,415.24
  5. Step 5: Solve for x
    x = 844,119,415.24/42,746.08
  6. Step 6: Final answer
    x = 19,747.29

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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.