Home / 43,101.12-64,651.68-13,521.32

Finding the Fourth Proportional to 43,101.12, 64,651.68 and 13,521.32

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Solution

The fourth proportional to 43,101.12, 64,651.68 and 13,521.32 is: 20,281.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,101.12 : 64,651.68 = 13,521.32 : x
  2. Step 2: Convert to fraction form
    43,101.12/64,651.68 = 13,521.32/x
  3. Step 3: Cross multiply
    43,101.12x = 64,651.68 × 13,521.32
  4. Step 4: Simplify right side
    43,101.12x = 874,176,053.82
  5. Step 5: Solve for x
    x = 874,176,053.82/43,101.12
  6. Step 6: Final answer
    x = 20,281.98

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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.