Home / 83,115.18-114,697.35-45,389.70

Finding the Fourth Proportional to 83,115.18, 114,697.35 and 45,389.70

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Solution

The fourth proportional to 83,115.18, 114,697.35 and 45,389.70 is: 62,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,115.18 : 114,697.35 = 45,389.70 : x
  2. Step 2: Convert to fraction form
    83,115.18/114,697.35 = 45,389.70/x
  3. Step 3: Cross multiply
    83,115.18x = 114,697.35 × 45,389.70
  4. Step 4: Simplify right side
    83,115.18x = 5,206,078,307.30
  5. Step 5: Solve for x
    x = 5,206,078,307.30/83,115.18
  6. Step 6: Final answer
    x = 62,636.91

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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.