Home / 86,168.14-118,909.92-47,927.76

Finding the Fourth Proportional to 86,168.14, 118,909.92 and 47,927.76

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Solution

The fourth proportional to 86,168.14, 118,909.92 and 47,927.76 is: 66,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,168.14 : 118,909.92 = 47,927.76 : x
  2. Step 2: Convert to fraction form
    86,168.14/118,909.92 = 47,927.76/x
  3. Step 3: Cross multiply
    86,168.14x = 118,909.92 × 47,927.76
  4. Step 4: Simplify right side
    86,168.14x = 5,699,086,677.28
  5. Step 5: Solve for x
    x = 5,699,086,677.28/86,168.14
  6. Step 6: Final answer
    x = 66,139.14

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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.