Home / 86,530.13-119,465.63-66,348.21

Finding the Fourth Proportional to 86,530.13, 119,465.63 and 66,348.21

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Solution

The fourth proportional to 86,530.13, 119,465.63 and 66,348.21 is: 91,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,530.13 : 119,465.63 = 66,348.21 : x
  2. Step 2: Convert to fraction form
    86,530.13/119,465.63 = 66,348.21/x
  3. Step 3: Cross multiply
    86,530.13x = 119,465.63 × 66,348.21
  4. Step 4: Simplify right side
    86,530.13x = 7,926,330,375.28
  5. Step 5: Solve for x
    x = 7,926,330,375.28/86,530.13
  6. Step 6: Final answer
    x = 91,601.98

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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.