Home / 85,125.84-127,688.42-25,961.34

Finding the Fourth Proportional to 85,125.84, 127,688.42 and 25,961.34

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Solution

The fourth proportional to 85,125.84, 127,688.42 and 25,961.34 is: 38,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,125.84 : 127,688.42 = 25,961.34 : x
  2. Step 2: Convert to fraction form
    85,125.84/127,688.42 = 25,961.34/x
  3. Step 3: Cross multiply
    85,125.84x = 127,688.42 × 25,961.34
  4. Step 4: Simplify right side
    85,125.84x = 3,314,962,485.68
  5. Step 5: Solve for x
    x = 3,314,962,485.68/85,125.84
  6. Step 6: Final answer
    x = 38,941.91

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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.