Home / 45,128.57-62,284.32-28,135.58

Finding the Fourth Proportional to 45,128.57, 62,284.32 and 28,135.58

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Solution

The fourth proportional to 45,128.57, 62,284.32 and 28,135.58 is: 38,831.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,128.57 : 62,284.32 = 28,135.58 : x
  2. Step 2: Convert to fraction form
    45,128.57/62,284.32 = 28,135.58/x
  3. Step 3: Cross multiply
    45,128.57x = 62,284.32 × 28,135.58
  4. Step 4: Simplify right side
    45,128.57x = 1,752,405,156.68
  5. Step 5: Solve for x
    x = 1,752,405,156.68/45,128.57
  6. Step 6: Final answer
    x = 38,831.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.