Home / 69,564.36-96,013.98-42,720.96

Finding the Fourth Proportional to 69,564.36, 96,013.98 and 42,720.96

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Solution

The fourth proportional to 69,564.36, 96,013.98 and 42,720.96 is: 58,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,564.36 : 96,013.98 = 42,720.96 : x
  2. Step 2: Convert to fraction form
    69,564.36/96,013.98 = 42,720.96/x
  3. Step 3: Cross multiply
    69,564.36x = 96,013.98 × 42,720.96
  4. Step 4: Simplify right side
    69,564.36x = 4,101,809,399.02
  5. Step 5: Solve for x
    x = 4,101,809,399.02/69,564.36
  6. Step 6: Final answer
    x = 58,964.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.