Home / 86,573.62-119,539.23-66,398.55

Finding the Fourth Proportional to 86,573.62, 119,539.23 and 66,398.55

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Solution

The fourth proportional to 86,573.62, 119,539.23 and 66,398.55 is: 91,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,573.62 : 119,539.23 = 66,398.55 : x
  2. Step 2: Convert to fraction form
    86,573.62/119,539.23 = 66,398.55/x
  3. Step 3: Cross multiply
    86,573.62x = 119,539.23 × 66,398.55
  4. Step 4: Simplify right side
    86,573.62x = 7,937,230,842.85
  5. Step 5: Solve for x
    x = 7,937,230,842.85/86,573.62
  6. Step 6: Final answer
    x = 91,681.86

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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.