Home / 66,018.12-91,103.76-37,337.28

Finding the Fourth Proportional to 66,018.12, 91,103.76 and 37,337.28

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Solution

The fourth proportional to 66,018.12, 91,103.76 and 37,337.28 is: 51,524.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.12 : 91,103.76 = 37,337.28 : x
  2. Step 2: Convert to fraction form
    66,018.12/91,103.76 = 37,337.28/x
  3. Step 3: Cross multiply
    66,018.12x = 91,103.76 × 37,337.28
  4. Step 4: Simplify right side
    66,018.12x = 3,401,566,596.17
  5. Step 5: Solve for x
    x = 3,401,566,596.17/66,018.12
  6. Step 6: Final answer
    x = 51,524.74

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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.