Home / 57,285.70-85,831.35-47,371.30

Finding the Fourth Proportional to 57,285.70, 85,831.35 and 47,371.30

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Solution

The fourth proportional to 57,285.70, 85,831.35 and 47,371.30 is: 70,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.70 : 85,831.35 = 47,371.30 : x
  2. Step 2: Convert to fraction form
    57,285.70/85,831.35 = 47,371.30/x
  3. Step 3: Cross multiply
    57,285.70x = 85,831.35 × 47,371.30
  4. Step 4: Simplify right side
    57,285.70x = 4,065,942,630.26
  5. Step 5: Solve for x
    x = 4,065,942,630.26/57,285.70
  6. Step 6: Final answer
    x = 70,976.57

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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.