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Finding the Fourth Proportional to 90,016.16, 134,978.88 and 40,094.24

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Solution

The fourth proportional to 90,016.16, 134,978.88 and 40,094.24 is: 60,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,016.16 : 134,978.88 = 40,094.24 : x
  2. Step 2: Convert to fraction form
    90,016.16/134,978.88 = 40,094.24/x
  3. Step 3: Cross multiply
    90,016.16x = 134,978.88 × 40,094.24
  4. Step 4: Simplify right side
    90,016.16x = 5,411,875,609.65
  5. Step 5: Solve for x
    x = 5,411,875,609.65/90,016.16
  6. Step 6: Final answer
    x = 60,121.16

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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.