Home / 77,423.61-116,135.13-51,122.10

Finding the Fourth Proportional to 77,423.61, 116,135.13 and 51,122.10

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Solution

The fourth proportional to 77,423.61, 116,135.13 and 51,122.10 is: 76,682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,423.61 : 116,135.13 = 51,122.10 : x
  2. Step 2: Convert to fraction form
    77,423.61/116,135.13 = 51,122.10/x
  3. Step 3: Cross multiply
    77,423.61x = 116,135.13 × 51,122.10
  4. Step 4: Simplify right side
    77,423.61x = 5,937,071,729.37
  5. Step 5: Solve for x
    x = 5,937,071,729.37/77,423.61
  6. Step 6: Final answer
    x = 76,682.96

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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.