Home / 51,007.10-70,391.57-28,347.05

Finding the Fourth Proportional to 51,007.10, 70,391.57 and 28,347.05

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Solution

The fourth proportional to 51,007.10, 70,391.57 and 28,347.05 is: 39,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,007.10 : 70,391.57 = 28,347.05 : x
  2. Step 2: Convert to fraction form
    51,007.10/70,391.57 = 28,347.05/x
  3. Step 3: Cross multiply
    51,007.10x = 70,391.57 × 28,347.05
  4. Step 4: Simplify right side
    51,007.10x = 1,995,392,860.68
  5. Step 5: Solve for x
    x = 1,995,392,860.68/51,007.10
  6. Step 6: Final answer
    x = 39,119.91

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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.