Home / 85,104.36-127,670.40-25,138.92

Finding the Fourth Proportional to 85,104.36, 127,670.40 and 25,138.92

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Solution

The fourth proportional to 85,104.36, 127,670.40 and 25,138.92 is: 37,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,104.36 : 127,670.40 = 25,138.92 : x
  2. Step 2: Convert to fraction form
    85,104.36/127,670.40 = 25,138.92/x
  3. Step 3: Cross multiply
    85,104.36x = 127,670.40 × 25,138.92
  4. Step 4: Simplify right side
    85,104.36x = 3,209,495,971.97
  5. Step 5: Solve for x
    x = 3,209,495,971.97/85,104.36
  6. Step 6: Final answer
    x = 37,712.47

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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.