Home / 89,648.16-134,429.32-52,218.90

Finding the Fourth Proportional to 89,648.16, 134,429.32 and 52,218.90

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Solution

The fourth proportional to 89,648.16, 134,429.32 and 52,218.90 is: 78,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,648.16 : 134,429.32 = 52,218.90 : x
  2. Step 2: Convert to fraction form
    89,648.16/134,429.32 = 52,218.90/x
  3. Step 3: Cross multiply
    89,648.16x = 134,429.32 × 52,218.90
  4. Step 4: Simplify right side
    89,648.16x = 7,019,751,218.15
  5. Step 5: Solve for x
    x = 7,019,751,218.15/89,648.16
  6. Step 6: Final answer
    x = 78,303.35

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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.