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Finding the Fourth Proportional to 86,910.76, 130,368.39 and 27,746.38

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Solution

The fourth proportional to 86,910.76, 130,368.39 and 27,746.38 is: 41,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,910.76 : 130,368.39 = 27,746.38 : x
  2. Step 2: Convert to fraction form
    86,910.76/130,368.39 = 27,746.38/x
  3. Step 3: Cross multiply
    86,910.76x = 130,368.39 × 27,746.38
  4. Step 4: Simplify right side
    86,910.76x = 3,617,250,888.93
  5. Step 5: Solve for x
    x = 3,617,250,888.93/86,910.76
  6. Step 6: Final answer
    x = 41,620.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.