Home / 84,436.16-126,544.32-34,457.60

Finding the Fourth Proportional to 84,436.16, 126,544.32 and 34,457.60

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Solution

The fourth proportional to 84,436.16, 126,544.32 and 34,457.60 is: 51,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,436.16 : 126,544.32 = 34,457.60 : x
  2. Step 2: Convert to fraction form
    84,436.16/126,544.32 = 34,457.60/x
  3. Step 3: Cross multiply
    84,436.16x = 126,544.32 × 34,457.60
  4. Step 4: Simplify right side
    84,436.16x = 4,360,413,560.83
  5. Step 5: Solve for x
    x = 4,360,413,560.83/84,436.16
  6. Step 6: Final answer
    x = 51,641.54

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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.