Home / 84,570.68-126,880.93-25,415.37

Finding the Fourth Proportional to 84,570.68, 126,880.93 and 25,415.37

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Solution

The fourth proportional to 84,570.68, 126,880.93 and 25,415.37 is: 38,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,570.68 : 126,880.93 = 25,415.37 : x
  2. Step 2: Convert to fraction form
    84,570.68/126,880.93 = 25,415.37/x
  3. Step 3: Cross multiply
    84,570.68x = 126,880.93 × 25,415.37
  4. Step 4: Simplify right side
    84,570.68x = 3,224,725,813.66
  5. Step 5: Solve for x
    x = 3,224,725,813.66/84,570.68
  6. Step 6: Final answer
    x = 38,130.54

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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.