Home / 90,068.32-135,102.48-23,507.87

Finding the Fourth Proportional to 90,068.32, 135,102.48 and 23,507.87

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Solution

The fourth proportional to 90,068.32, 135,102.48 and 23,507.87 is: 35,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,068.32 : 135,102.48 = 23,507.87 : x
  2. Step 2: Convert to fraction form
    90,068.32/135,102.48 = 23,507.87/x
  3. Step 3: Cross multiply
    90,068.32x = 135,102.48 × 23,507.87
  4. Step 4: Simplify right side
    90,068.32x = 3,175,970,743.47
  5. Step 5: Solve for x
    x = 3,175,970,743.47/90,068.32
  6. Step 6: Final answer
    x = 35,261.80

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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.