Home / 86,761.74-119,733.96-56,566.56

Finding the Fourth Proportional to 86,761.74, 119,733.96 and 56,566.56

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Solution

The fourth proportional to 86,761.74, 119,733.96 and 56,566.56 is: 78,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,761.74 : 119,733.96 = 56,566.56 : x
  2. Step 2: Convert to fraction form
    86,761.74/119,733.96 = 56,566.56/x
  3. Step 3: Cross multiply
    86,761.74x = 119,733.96 × 56,566.56
  4. Step 4: Simplify right side
    86,761.74x = 6,772,938,232.38
  5. Step 5: Solve for x
    x = 6,772,938,232.38/86,761.74
  6. Step 6: Final answer
    x = 78,063.65

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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.