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Finding the Fourth Proportional to 86,118.16, 118,844.49 and 47,357.62

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Solution

The fourth proportional to 86,118.16, 118,844.49 and 47,357.62 is: 65,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.16 : 118,844.49 = 47,357.62 : x
  2. Step 2: Convert to fraction form
    86,118.16/118,844.49 = 47,357.62/x
  3. Step 3: Cross multiply
    86,118.16x = 118,844.49 × 47,357.62
  4. Step 4: Simplify right side
    86,118.16x = 5,628,192,196.51
  5. Step 5: Solve for x
    x = 5,628,192,196.51/86,118.16
  6. Step 6: Final answer
    x = 65,354.30

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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.