Home / 92,421.14-127,540.53-49,979.06

Finding the Fourth Proportional to 92,421.14, 127,540.53 and 49,979.06

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Solution

The fourth proportional to 92,421.14, 127,540.53 and 49,979.06 is: 68,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,421.14 : 127,540.53 = 49,979.06 : x
  2. Step 2: Convert to fraction form
    92,421.14/127,540.53 = 49,979.06/x
  3. Step 3: Cross multiply
    92,421.14x = 127,540.53 × 49,979.06
  4. Step 4: Simplify right side
    92,421.14x = 6,374,355,801.30
  5. Step 5: Solve for x
    x = 6,374,355,801.30/92,421.14
  6. Step 6: Final answer
    x = 68,970.75

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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.