Home / 52,310.08-78,511.13-28,639.45

Finding the Fourth Proportional to 52,310.08, 78,511.13 and 28,639.45

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Solution

The fourth proportional to 52,310.08, 78,511.13 and 28,639.45 is: 42,984.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,310.08 : 78,511.13 = 28,639.45 : x
  2. Step 2: Convert to fraction form
    52,310.08/78,511.13 = 28,639.45/x
  3. Step 3: Cross multiply
    52,310.08x = 78,511.13 × 28,639.45
  4. Step 4: Simplify right side
    52,310.08x = 2,248,515,582.08
  5. Step 5: Solve for x
    x = 2,248,515,582.08/52,310.08
  6. Step 6: Final answer
    x = 42,984.37

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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.