Home / 89,979.81-134,924.39-29,987.02

Finding the Fourth Proportional to 89,979.81, 134,924.39 and 29,987.02

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Solution

The fourth proportional to 89,979.81, 134,924.39 and 29,987.02 is: 44,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.81 : 134,924.39 = 29,987.02 : x
  2. Step 2: Convert to fraction form
    89,979.81/134,924.39 = 29,987.02/x
  3. Step 3: Cross multiply
    89,979.81x = 134,924.39 × 29,987.02
  4. Step 4: Simplify right side
    89,979.81x = 4,045,980,381.42
  5. Step 5: Solve for x
    x = 4,045,980,381.42/89,979.81
  6. Step 6: Final answer
    x = 44,965.42

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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.