Home / 74,341.20-111,511.80-61,875.30

Finding the Fourth Proportional to 74,341.20, 111,511.80 and 61,875.30

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Solution

The fourth proportional to 74,341.20, 111,511.80 and 61,875.30 is: 92,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,341.20 : 111,511.80 = 61,875.30 : x
  2. Step 2: Convert to fraction form
    74,341.20/111,511.80 = 61,875.30/x
  3. Step 3: Cross multiply
    74,341.20x = 111,511.80 × 61,875.30
  4. Step 4: Simplify right side
    74,341.20x = 6,899,826,078.54
  5. Step 5: Solve for x
    x = 6,899,826,078.54/74,341.20
  6. Step 6: Final answer
    x = 92,812.95

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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.