Home / 86,188.16-118,811.20-52,631.68

Finding the Fourth Proportional to 86,188.16, 118,811.20 and 52,631.68

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Solution

The fourth proportional to 86,188.16, 118,811.20 and 52,631.68 is: 72,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,188.16 : 118,811.20 = 52,631.68 : x
  2. Step 2: Convert to fraction form
    86,188.16/118,811.20 = 52,631.68/x
  3. Step 3: Cross multiply
    86,188.16x = 118,811.20 × 52,631.68
  4. Step 4: Simplify right side
    86,188.16x = 6,253,233,058.82
  5. Step 5: Solve for x
    x = 6,253,233,058.82/86,188.16
  6. Step 6: Final answer
    x = 72,553.27

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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.