Home / 76,700.03-115,041.98-20,545.94

Finding the Fourth Proportional to 76,700.03, 115,041.98 and 20,545.94

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Solution

The fourth proportional to 76,700.03, 115,041.98 and 20,545.94 is: 30,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,700.03 : 115,041.98 = 20,545.94 : x
  2. Step 2: Convert to fraction form
    76,700.03/115,041.98 = 20,545.94/x
  3. Step 3: Cross multiply
    76,700.03x = 115,041.98 × 20,545.94
  4. Step 4: Simplify right side
    76,700.03x = 2,363,644,940.62
  5. Step 5: Solve for x
    x = 2,363,644,940.62/76,700.03
  6. Step 6: Final answer
    x = 30,816.74

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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.