Home / 42,656.16-63,996.54-13,078.36

Finding the Fourth Proportional to 42,656.16, 63,996.54 and 13,078.36

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Solution

The fourth proportional to 42,656.16, 63,996.54 and 13,078.36 is: 19,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,656.16 : 63,996.54 = 13,078.36 : x
  2. Step 2: Convert to fraction form
    42,656.16/63,996.54 = 13,078.36/x
  3. Step 3: Cross multiply
    42,656.16x = 63,996.54 × 13,078.36
  4. Step 4: Simplify right side
    42,656.16x = 836,969,579.84
  5. Step 5: Solve for x
    x = 836,969,579.84/42,656.16
  6. Step 6: Final answer
    x = 19,621.31

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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.