Home / 51,979.05-77,967.86-12,535.83

Finding the Fourth Proportional to 51,979.05, 77,967.86 and 12,535.83

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Solution

The fourth proportional to 51,979.05, 77,967.86 and 12,535.83 is: 18,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,979.05 : 77,967.86 = 12,535.83 : x
  2. Step 2: Convert to fraction form
    51,979.05/77,967.86 = 12,535.83/x
  3. Step 3: Cross multiply
    51,979.05x = 77,967.86 × 12,535.83
  4. Step 4: Simplify right side
    51,979.05x = 977,391,775.74
  5. Step 5: Solve for x
    x = 977,391,775.74/51,979.05
  6. Step 6: Final answer
    x = 18,803.57

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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.