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Finding the Fourth Proportional to 56,470.46, 84,686.99 and 19,021.23

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Solution

The fourth proportional to 56,470.46, 84,686.99 and 19,021.23 is: 28,525.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,470.46 : 84,686.99 = 19,021.23 : x
  2. Step 2: Convert to fraction form
    56,470.46/84,686.99 = 19,021.23/x
  3. Step 3: Cross multiply
    56,470.46x = 84,686.99 × 19,021.23
  4. Step 4: Simplify right side
    56,470.46x = 1,610,850,619.69
  5. Step 5: Solve for x
    x = 1,610,850,619.69/56,470.46
  6. Step 6: Final answer
    x = 28,525.55

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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.