Home / 89,919.08-134,905.62-42,570.26

Finding the Fourth Proportional to 89,919.08, 134,905.62 and 42,570.26

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Solution

The fourth proportional to 89,919.08, 134,905.62 and 42,570.26 is: 63,868.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,919.08 : 134,905.62 = 42,570.26 : x
  2. Step 2: Convert to fraction form
    89,919.08/134,905.62 = 42,570.26/x
  3. Step 3: Cross multiply
    89,919.08x = 134,905.62 × 42,570.26
  4. Step 4: Simplify right side
    89,919.08x = 5,742,967,318.86
  5. Step 5: Solve for x
    x = 5,742,967,318.86/89,919.08
  6. Step 6: Final answer
    x = 63,868.17

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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.