Home / 86,861.16-119,841.93-56,635.61

Finding the Fourth Proportional to 86,861.16, 119,841.93 and 56,635.61

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Solution

The fourth proportional to 86,861.16, 119,841.93 and 56,635.61 is: 78,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,861.16 : 119,841.93 = 56,635.61 : x
  2. Step 2: Convert to fraction form
    86,861.16/119,841.93 = 56,635.61/x
  3. Step 3: Cross multiply
    86,861.16x = 119,841.93 × 56,635.61
  4. Step 4: Simplify right side
    86,861.16x = 6,787,320,209.92
  5. Step 5: Solve for x
    x = 6,787,320,209.92/86,861.16
  6. Step 6: Final answer
    x = 78,139.88

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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.