Home / 48,919.51-67,644.81-38,830.43

Finding the Fourth Proportional to 48,919.51, 67,644.81 and 38,830.43

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Solution

The fourth proportional to 48,919.51, 67,644.81 and 38,830.43 is: 53,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,919.51 : 67,644.81 = 38,830.43 : x
  2. Step 2: Convert to fraction form
    48,919.51/67,644.81 = 38,830.43/x
  3. Step 3: Cross multiply
    48,919.51x = 67,644.81 × 38,830.43
  4. Step 4: Simplify right side
    48,919.51x = 2,626,676,865.42
  5. Step 5: Solve for x
    x = 2,626,676,865.42/48,919.51
  6. Step 6: Final answer
    x = 53,693.86

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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.