Home / 89,668.36-134,604.60-45,345.16

Finding the Fourth Proportional to 89,668.36, 134,604.60 and 45,345.16

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Solution

The fourth proportional to 89,668.36, 134,604.60 and 45,345.16 is: 68,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,668.36 : 134,604.60 = 45,345.16 : x
  2. Step 2: Convert to fraction form
    89,668.36/134,604.60 = 45,345.16/x
  3. Step 3: Cross multiply
    89,668.36x = 134,604.60 × 45,345.16
  4. Step 4: Simplify right side
    89,668.36x = 6,103,667,123.74
  5. Step 5: Solve for x
    x = 6,103,667,123.74/89,668.36
  6. Step 6: Final answer
    x = 68,069.35

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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.