Home / 68,421.25-94,420.40-38,207.09

Finding the Fourth Proportional to 68,421.25, 94,420.40 and 38,207.09

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Solution

The fourth proportional to 68,421.25, 94,420.40 and 38,207.09 is: 52,725.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,421.25 : 94,420.40 = 38,207.09 : x
  2. Step 2: Convert to fraction form
    68,421.25/94,420.40 = 38,207.09/x
  3. Step 3: Cross multiply
    68,421.25x = 94,420.40 × 38,207.09
  4. Step 4: Simplify right side
    68,421.25x = 3,607,528,720.64
  5. Step 5: Solve for x
    x = 3,607,528,720.64/68,421.25
  6. Step 6: Final answer
    x = 52,725.27

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1.5x scale

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.