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Finding the Fourth Proportional to 86,106.72, 118,828.68 and 47,346.17

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Solution

The fourth proportional to 86,106.72, 118,828.68 and 47,346.17 is: 65,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,106.72 : 118,828.68 = 47,346.17 : x
  2. Step 2: Convert to fraction form
    86,106.72/118,828.68 = 47,346.17/x
  3. Step 3: Cross multiply
    86,106.72x = 118,828.68 × 47,346.17
  4. Step 4: Simplify right side
    86,106.72x = 5,626,083,181.23
  5. Step 5: Solve for x
    x = 5,626,083,181.23/86,106.72
  6. Step 6: Final answer
    x = 65,338.49

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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.