Home / 51,437.81-77,156.72-18,158.96

Finding the Fourth Proportional to 51,437.81, 77,156.72 and 18,158.96

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Solution

The fourth proportional to 51,437.81, 77,156.72 and 18,158.96 is: 27,238.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,437.81 : 77,156.72 = 18,158.96 : x
  2. Step 2: Convert to fraction form
    51,437.81/77,156.72 = 18,158.96/x
  3. Step 3: Cross multiply
    51,437.81x = 77,156.72 × 18,158.96
  4. Step 4: Simplify right side
    51,437.81x = 1,401,085,701.42
  5. Step 5: Solve for x
    x = 1,401,085,701.42/51,437.81
  6. Step 6: Final answer
    x = 27,238.44

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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.