Home / 51,040.43-70,435.73-28,378.71

Finding the Fourth Proportional to 51,040.43, 70,435.73 and 28,378.71

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Solution

The fourth proportional to 51,040.43, 70,435.73 and 28,378.71 is: 39,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.43 : 70,435.73 = 28,378.71 : x
  2. Step 2: Convert to fraction form
    51,040.43/70,435.73 = 28,378.71/x
  3. Step 3: Cross multiply
    51,040.43x = 70,435.73 × 28,378.71
  4. Step 4: Simplify right side
    51,040.43x = 1,998,875,155.31
  5. Step 5: Solve for x
    x = 1,998,875,155.31/51,040.43
  6. Step 6: Final answer
    x = 39,162.58

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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.