Home / 85,078.16-127,609.56-25,927.76

Finding the Fourth Proportional to 85,078.16, 127,609.56 and 25,927.76

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Solution

The fourth proportional to 85,078.16, 127,609.56 and 25,927.76 is: 38,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,078.16 : 127,609.56 = 25,927.76 : x
  2. Step 2: Convert to fraction form
    85,078.16/127,609.56 = 25,927.76/x
  3. Step 3: Cross multiply
    85,078.16x = 127,609.56 × 25,927.76
  4. Step 4: Simplify right side
    85,078.16x = 3,308,630,045.39
  5. Step 5: Solve for x
    x = 3,308,630,045.39/85,078.16
  6. Step 6: Final answer
    x = 38,889.30

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1.5x scale

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.