Home / 89,647.14-134,369.54-39,720.66

Finding the Fourth Proportional to 89,647.14, 134,369.54 and 39,720.66

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Solution

The fourth proportional to 89,647.14, 134,369.54 and 39,720.66 is: 59,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.14 : 134,369.54 = 39,720.66 : x
  2. Step 2: Convert to fraction form
    89,647.14/134,369.54 = 39,720.66/x
  3. Step 3: Cross multiply
    89,647.14x = 134,369.54 × 39,720.66
  4. Step 4: Simplify right side
    89,647.14x = 5,337,246,812.70
  5. Step 5: Solve for x
    x = 5,337,246,812.70/89,647.14
  6. Step 6: Final answer
    x = 59,536.16

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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.