Home / 51,315.74-70,815.51-28,959.58

Finding the Fourth Proportional to 51,315.74, 70,815.51 and 28,959.58

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Solution

The fourth proportional to 51,315.74, 70,815.51 and 28,959.58 is: 39,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,315.74 : 70,815.51 = 28,959.58 : x
  2. Step 2: Convert to fraction form
    51,315.74/70,815.51 = 28,959.58/x
  3. Step 3: Cross multiply
    51,315.74x = 70,815.51 × 28,959.58
  4. Step 4: Simplify right side
    51,315.74x = 2,050,787,427.09
  5. Step 5: Solve for x
    x = 2,050,787,427.09/51,315.74
  6. Step 6: Final answer
    x = 39,964.10

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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.