Home / 54,432.77-81,610.88-21,124.76

Finding the Fourth Proportional to 54,432.77, 81,610.88 and 21,124.76

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Solution

The fourth proportional to 54,432.77, 81,610.88 and 21,124.76 is: 31,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,432.77 : 81,610.88 = 21,124.76 : x
  2. Step 2: Convert to fraction form
    54,432.77/81,610.88 = 21,124.76/x
  3. Step 3: Cross multiply
    54,432.77x = 81,610.88 × 21,124.76
  4. Step 4: Simplify right side
    54,432.77x = 1,724,009,739.71
  5. Step 5: Solve for x
    x = 1,724,009,739.71/54,432.77
  6. Step 6: Final answer
    x = 31,672.28

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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.