Home / 89,627.74-123,683.70-51,386.02

Finding the Fourth Proportional to 89,627.74, 123,683.70 and 51,386.02

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Solution

The fourth proportional to 89,627.74, 123,683.70 and 51,386.02 is: 70,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,627.74 : 123,683.70 = 51,386.02 : x
  2. Step 2: Convert to fraction form
    89,627.74/123,683.70 = 51,386.02/x
  3. Step 3: Cross multiply
    89,627.74x = 123,683.70 × 51,386.02
  4. Step 4: Simplify right side
    89,627.74x = 6,355,613,081.87
  5. Step 5: Solve for x
    x = 6,355,613,081.87/89,627.74
  6. Step 6: Final answer
    x = 70,911.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.