Home / 85,280.70-127,947.78-35,384.34

Finding the Fourth Proportional to 85,280.70, 127,947.78 and 35,384.34

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Solution

The fourth proportional to 85,280.70, 127,947.78 and 35,384.34 is: 53,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,280.70 : 127,947.78 = 35,384.34 : x
  2. Step 2: Convert to fraction form
    85,280.70/127,947.78 = 35,384.34/x
  3. Step 3: Cross multiply
    85,280.70x = 127,947.78 × 35,384.34
  4. Step 4: Simplify right side
    85,280.70x = 4,527,347,749.77
  5. Step 5: Solve for x
    x = 4,527,347,749.77/85,280.70
  6. Step 6: Final answer
    x = 53,087.60

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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.