Home / 76,981.52-106,234.80-45,151.04

Finding the Fourth Proportional to 76,981.52, 106,234.80 and 45,151.04

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Solution

The fourth proportional to 76,981.52, 106,234.80 and 45,151.04 is: 62,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,981.52 : 106,234.80 = 45,151.04 : x
  2. Step 2: Convert to fraction form
    76,981.52/106,234.80 = 45,151.04/x
  3. Step 3: Cross multiply
    76,981.52x = 106,234.80 × 45,151.04
  4. Step 4: Simplify right side
    76,981.52x = 4,796,611,704.19
  5. Step 5: Solve for x
    x = 4,796,611,704.19/76,981.52
  6. Step 6: Final answer
    x = 62,308.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.