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Finding the Fourth Proportional to 86,992.72, 130,509.51 and 27,018.13

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Solution

The fourth proportional to 86,992.72, 130,509.51 and 27,018.13 is: 40,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.72 : 130,509.51 = 27,018.13 : x
  2. Step 2: Convert to fraction form
    86,992.72/130,509.51 = 27,018.13/x
  3. Step 3: Cross multiply
    86,992.72x = 130,509.51 × 27,018.13
  4. Step 4: Simplify right side
    86,992.72x = 3,526,122,907.42
  5. Step 5: Solve for x
    x = 3,526,122,907.42/86,992.72
  6. Step 6: Final answer
    x = 40,533.54

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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.