Home / 92,790.20-139,006.08-55,380.08

Finding the Fourth Proportional to 92,790.20, 139,006.08 and 55,380.08

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Solution

The fourth proportional to 92,790.20, 139,006.08 and 55,380.08 is: 82,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,790.20 : 139,006.08 = 55,380.08 : x
  2. Step 2: Convert to fraction form
    92,790.20/139,006.08 = 55,380.08/x
  3. Step 3: Cross multiply
    92,790.20x = 139,006.08 × 55,380.08
  4. Step 4: Simplify right side
    92,790.20x = 7,698,167,830.89
  5. Step 5: Solve for x
    x = 7,698,167,830.89/92,790.20
  6. Step 6: Final answer
    x = 82,963.16

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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.