Home / 57,943.08-79,920.18-53,178.38

Finding the Fourth Proportional to 57,943.08, 79,920.18 and 53,178.38

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Solution

The fourth proportional to 57,943.08, 79,920.18 and 53,178.38 is: 73,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,943.08 : 79,920.18 = 53,178.38 : x
  2. Step 2: Convert to fraction form
    57,943.08/79,920.18 = 53,178.38/x
  3. Step 3: Cross multiply
    57,943.08x = 79,920.18 × 53,178.38
  4. Step 4: Simplify right side
    57,943.08x = 4,250,025,701.71
  5. Step 5: Solve for x
    x = 4,250,025,701.71/57,943.08
  6. Step 6: Final answer
    x = 73,348.29

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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.