Home / 53,515.98-73,857.51-30,855.78

Finding the Fourth Proportional to 53,515.98, 73,857.51 and 30,855.78

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Solution

The fourth proportional to 53,515.98, 73,857.51 and 30,855.78 is: 42,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,515.98 : 73,857.51 = 30,855.78 : x
  2. Step 2: Convert to fraction form
    53,515.98/73,857.51 = 30,855.78/x
  3. Step 3: Cross multiply
    53,515.98x = 73,857.51 × 30,855.78
  4. Step 4: Simplify right side
    53,515.98x = 2,278,931,079.91
  5. Step 5: Solve for x
    x = 2,278,931,079.91/53,515.98
  6. Step 6: Final answer
    x = 42,584.12

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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.