Home / 56,438.81-84,636.75-18,479.24

Finding the Fourth Proportional to 56,438.81, 84,636.75 and 18,479.24

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Solution

The fourth proportional to 56,438.81, 84,636.75 and 18,479.24 is: 27,711.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438.81 : 84,636.75 = 18,479.24 : x
  2. Step 2: Convert to fraction form
    56,438.81/84,636.75 = 18,479.24/x
  3. Step 3: Cross multiply
    56,438.81x = 84,636.75 × 18,479.24
  4. Step 4: Simplify right side
    56,438.81x = 1,564,022,816.07
  5. Step 5: Solve for x
    x = 1,564,022,816.07/56,438.81
  6. Step 6: Final answer
    x = 27,711.83

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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.