Home / 51,113.68-70,540.20-28,452.40

Finding the Fourth Proportional to 51,113.68, 70,540.20 and 28,452.40

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Solution

The fourth proportional to 51,113.68, 70,540.20 and 28,452.40 is: 39,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,113.68 : 70,540.20 = 28,452.40 : x
  2. Step 2: Convert to fraction form
    51,113.68/70,540.20 = 28,452.40/x
  3. Step 3: Cross multiply
    51,113.68x = 70,540.20 × 28,452.40
  4. Step 4: Simplify right side
    51,113.68x = 2,007,037,986.48
  5. Step 5: Solve for x
    x = 2,007,037,986.48/51,113.68
  6. Step 6: Final answer
    x = 39,266.16

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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.