Home / 57,221.10-85,831.65-38,558.70

Finding the Fourth Proportional to 57,221.10, 85,831.65 and 38,558.70

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Solution

The fourth proportional to 57,221.10, 85,831.65 and 38,558.70 is: 57,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,221.10 : 85,831.65 = 38,558.70 : x
  2. Step 2: Convert to fraction form
    57,221.10/85,831.65 = 38,558.70/x
  3. Step 3: Cross multiply
    57,221.10x = 85,831.65 × 38,558.70
  4. Step 4: Simplify right side
    57,221.10x = 3,309,556,842.86
  5. Step 5: Solve for x
    x = 3,309,556,842.86/57,221.10
  6. Step 6: Final answer
    x = 57,838.05

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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.