Home / 43,242.12-64,839.63-19,521.87

Finding the Fourth Proportional to 43,242.12, 64,839.63 and 19,521.87

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Solution

The fourth proportional to 43,242.12, 64,839.63 and 19,521.87 is: 29,272.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,242.12 : 64,839.63 = 19,521.87 : x
  2. Step 2: Convert to fraction form
    43,242.12/64,839.63 = 19,521.87/x
  3. Step 3: Cross multiply
    43,242.12x = 64,839.63 × 19,521.87
  4. Step 4: Simplify right side
    43,242.12x = 1,265,790,827.71
  5. Step 5: Solve for x
    x = 1,265,790,827.71/43,242.12
  6. Step 6: Final answer
    x = 29,272.17

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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.