Home / 51,098.64-70,519.80-28,439.40

Finding the Fourth Proportional to 51,098.64, 70,519.80 and 28,439.40

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Solution

The fourth proportional to 51,098.64, 70,519.80 and 28,439.40 is: 39,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,098.64 : 70,519.80 = 28,439.40 : x
  2. Step 2: Convert to fraction form
    51,098.64/70,519.80 = 28,439.40/x
  3. Step 3: Cross multiply
    51,098.64x = 70,519.80 × 28,439.40
  4. Step 4: Simplify right side
    51,098.64x = 2,005,540,800.12
  5. Step 5: Solve for x
    x = 2,005,540,800.12/51,098.64
  6. Step 6: Final answer
    x = 39,248.42

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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.