Home / 85,279.86-127,975.14-38,533.14

Finding the Fourth Proportional to 85,279.86, 127,975.14 and 38,533.14

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Solution

The fourth proportional to 85,279.86, 127,975.14 and 38,533.14 is: 57,824.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.86 : 127,975.14 = 38,533.14 : x
  2. Step 2: Convert to fraction form
    85,279.86/127,975.14 = 38,533.14/x
  3. Step 3: Cross multiply
    85,279.86x = 127,975.14 × 38,533.14
  4. Step 4: Simplify right side
    85,279.86x = 4,931,283,986.14
  5. Step 5: Solve for x
    x = 4,931,283,986.14/85,279.86
  6. Step 6: Final answer
    x = 57,824.72

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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.