Home / 89,640.93-134,399.16-39,693.81

Finding the Fourth Proportional to 89,640.93, 134,399.16 and 39,693.81

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Solution

The fourth proportional to 89,640.93, 134,399.16 and 39,693.81 is: 59,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.93 : 134,399.16 = 39,693.81 : x
  2. Step 2: Convert to fraction form
    89,640.93/134,399.16 = 39,693.81/x
  3. Step 3: Cross multiply
    89,640.93x = 134,399.16 × 39,693.81
  4. Step 4: Simplify right side
    89,640.93x = 5,334,814,721.20
  5. Step 5: Solve for x
    x = 5,334,814,721.20/89,640.93
  6. Step 6: Final answer
    x = 59,513.16

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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.