Home / 86,779.15-119,753.64-49,053.40

Finding the Fourth Proportional to 86,779.15, 119,753.64 and 49,053.40

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Solution

The fourth proportional to 86,779.15, 119,753.64 and 49,053.40 is: 67,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,779.15 : 119,753.64 = 49,053.40 : x
  2. Step 2: Convert to fraction form
    86,779.15/119,753.64 = 49,053.40/x
  3. Step 3: Cross multiply
    86,779.15x = 119,753.64 × 49,053.40
  4. Step 4: Simplify right side
    86,779.15x = 5,874,322,360.34
  5. Step 5: Solve for x
    x = 5,874,322,360.34/86,779.15
  6. Step 6: Final answer
    x = 67,692.79

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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.