Home / 51,603.28-77,401.64-18,318.96

Finding the Fourth Proportional to 51,603.28, 77,401.64 and 18,318.96

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Solution

The fourth proportional to 51,603.28, 77,401.64 and 18,318.96 is: 27,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,603.28 : 77,401.64 = 18,318.96 : x
  2. Step 2: Convert to fraction form
    51,603.28/77,401.64 = 18,318.96/x
  3. Step 3: Cross multiply
    51,603.28x = 77,401.64 × 18,318.96
  4. Step 4: Simplify right side
    51,603.28x = 1,417,917,592.89
  5. Step 5: Solve for x
    x = 1,417,917,592.89/51,603.28
  6. Step 6: Final answer
    x = 27,477.28

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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.