Home / 51,109.87-70,531.61-28,448.38

Finding the Fourth Proportional to 51,109.87, 70,531.61 and 28,448.38

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Solution

The fourth proportional to 51,109.87, 70,531.61 and 28,448.38 is: 39,258.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.87 : 70,531.61 = 28,448.38 : x
  2. Step 2: Convert to fraction form
    51,109.87/70,531.61 = 28,448.38/x
  3. Step 3: Cross multiply
    51,109.87x = 70,531.61 × 28,448.38
  4. Step 4: Simplify right side
    51,109.87x = 2,006,509,752.50
  5. Step 5: Solve for x
    x = 2,006,509,752.50/51,109.87
  6. Step 6: Final answer
    x = 39,258.75

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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.