Home / 51,000.23-70,378.92-28,338.64

Finding the Fourth Proportional to 51,000.23, 70,378.92 and 28,338.64

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Solution

The fourth proportional to 51,000.23, 70,378.92 and 28,338.64 is: 39,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,000.23 : 70,378.92 = 28,338.64 : x
  2. Step 2: Convert to fraction form
    51,000.23/70,378.92 = 28,338.64/x
  3. Step 3: Cross multiply
    51,000.23x = 70,378.92 × 28,338.64
  4. Step 4: Simplify right side
    51,000.23x = 1,994,442,877.47
  5. Step 5: Solve for x
    x = 1,994,442,877.47/51,000.23
  6. Step 6: Final answer
    x = 39,106.55

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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.