Home / 42,965.36-64,447.92-11,800.64

Finding the Fourth Proportional to 42,965.36, 64,447.92 and 11,800.64

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Solution

The fourth proportional to 42,965.36, 64,447.92 and 11,800.64 is: 17,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.36 : 64,447.92 = 11,800.64 : x
  2. Step 2: Convert to fraction form
    42,965.36/64,447.92 = 11,800.64/x
  3. Step 3: Cross multiply
    42,965.36x = 64,447.92 × 11,800.64
  4. Step 4: Simplify right side
    42,965.36x = 760,526,702.67
  5. Step 5: Solve for x
    x = 760,526,702.67/42,965.36
  6. Step 6: Final answer
    x = 17,700.93

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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.