Home / 68,438.16-94,442.72-38,222.60

Finding the Fourth Proportional to 68,438.16, 94,442.72 and 38,222.60

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Solution

The fourth proportional to 68,438.16, 94,442.72 and 38,222.60 is: 52,746.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438.16 : 94,442.72 = 38,222.60 : x
  2. Step 2: Convert to fraction form
    68,438.16/94,442.72 = 38,222.60/x
  3. Step 3: Cross multiply
    68,438.16x = 94,442.72 × 38,222.60
  4. Step 4: Simplify right side
    68,438.16x = 3,609,845,646.15
  5. Step 5: Solve for x
    x = 3,609,845,646.15/68,438.16
  6. Step 6: Final answer
    x = 52,746.09

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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.