Home / 86,776.76-119,758.02-49,051.32

Finding the Fourth Proportional to 86,776.76, 119,758.02 and 49,051.32

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Solution

The fourth proportional to 86,776.76, 119,758.02 and 49,051.32 is: 67,694.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,776.76 : 119,758.02 = 49,051.32 : x
  2. Step 2: Convert to fraction form
    86,776.76/119,758.02 = 49,051.32/x
  3. Step 3: Cross multiply
    86,776.76x = 119,758.02 × 49,051.32
  4. Step 4: Simplify right side
    86,776.76x = 5,874,288,961.59
  5. Step 5: Solve for x
    x = 5,874,288,961.59/86,776.76
  6. Step 6: Final answer
    x = 67,694.26

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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.