Home / 51,011.54-76,505.15-21,429.95

Finding the Fourth Proportional to 51,011.54, 76,505.15 and 21,429.95

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Solution

The fourth proportional to 51,011.54, 76,505.15 and 21,429.95 is: 32,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,011.54 : 76,505.15 = 21,429.95 : x
  2. Step 2: Convert to fraction form
    51,011.54/76,505.15 = 21,429.95/x
  3. Step 3: Cross multiply
    51,011.54x = 76,505.15 × 21,429.95
  4. Step 4: Simplify right side
    51,011.54x = 1,639,501,210.29
  5. Step 5: Solve for x
    x = 1,639,501,210.29/51,011.54
  6. Step 6: Final answer
    x = 32,139.81

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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.