Home / 89,678.62-134,425.66-39,782.22

Finding the Fourth Proportional to 89,678.62, 134,425.66 and 39,782.22

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Solution

The fourth proportional to 89,678.62, 134,425.66 and 39,782.22 is: 59,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,678.62 : 134,425.66 = 39,782.22 : x
  2. Step 2: Convert to fraction form
    89,678.62/134,425.66 = 39,782.22/x
  3. Step 3: Cross multiply
    89,678.62x = 134,425.66 × 39,782.22
  4. Step 4: Simplify right side
    89,678.62x = 5,347,751,179.77
  5. Step 5: Solve for x
    x = 5,347,751,179.77/89,678.62
  6. Step 6: Final answer
    x = 59,632.40

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1.5x scale

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.