Home / 57,176.16-78,930.48-38,087.70

Finding the Fourth Proportional to 57,176.16, 78,930.48 and 38,087.70

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Solution

The fourth proportional to 57,176.16, 78,930.48 and 38,087.70 is: 52,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,176.16 : 78,930.48 = 38,087.70 : x
  2. Step 2: Convert to fraction form
    57,176.16/78,930.48 = 38,087.70/x
  3. Step 3: Cross multiply
    57,176.16x = 78,930.48 × 38,087.70
  4. Step 4: Simplify right side
    57,176.16x = 3,006,280,443.10
  5. Step 5: Solve for x
    x = 3,006,280,443.10/57,176.16
  6. Step 6: Final answer
    x = 52,579.26

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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.