Home / 86,981.32-120,034.68-48,740.95

Finding the Fourth Proportional to 86,981.32, 120,034.68 and 48,740.95

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Solution

The fourth proportional to 86,981.32, 120,034.68 and 48,740.95 is: 67,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,981.32 : 120,034.68 = 48,740.95 : x
  2. Step 2: Convert to fraction form
    86,981.32/120,034.68 = 48,740.95/x
  3. Step 3: Cross multiply
    86,981.32x = 120,034.68 × 48,740.95
  4. Step 4: Simplify right side
    86,981.32x = 5,850,604,336.15
  5. Step 5: Solve for x
    x = 5,850,604,336.15/86,981.32
  6. Step 6: Final answer
    x = 67,262.77

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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.