Home / 81,633.83-122,451.55-53,730.95

Finding the Fourth Proportional to 81,633.83, 122,451.55 and 53,730.95

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Solution

The fourth proportional to 81,633.83, 122,451.55 and 53,730.95 is: 80,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,633.83 : 122,451.55 = 53,730.95 : x
  2. Step 2: Convert to fraction form
    81,633.83/122,451.55 = 53,730.95/x
  3. Step 3: Cross multiply
    81,633.83x = 122,451.55 × 53,730.95
  4. Step 4: Simplify right side
    81,633.83x = 6,579,437,363.89
  5. Step 5: Solve for x
    x = 6,579,437,363.89/81,633.83
  6. Step 6: Final answer
    x = 80,596.95

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1.5x scale

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.