Home / 51,043.76-76,569.28-13,603.63

Finding the Fourth Proportional to 51,043.76, 76,569.28 and 13,603.63

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Solution

The fourth proportional to 51,043.76, 76,569.28 and 13,603.63 is: 20,406.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,043.76 : 76,569.28 = 13,603.63 : x
  2. Step 2: Convert to fraction form
    51,043.76/76,569.28 = 13,603.63/x
  3. Step 3: Cross multiply
    51,043.76x = 76,569.28 × 13,603.63
  4. Step 4: Simplify right side
    51,043.76x = 1,041,620,154.49
  5. Step 5: Solve for x
    x = 1,041,620,154.49/51,043.76
  6. Step 6: Final answer
    x = 20,406.42

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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.