Home / 66,348.72-91,604.88-51,215.04

Finding the Fourth Proportional to 66,348.72, 91,604.88 and 51,215.04

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Solution

The fourth proportional to 66,348.72, 91,604.88 and 51,215.04 is: 70,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,348.72 : 91,604.88 = 51,215.04 : x
  2. Step 2: Convert to fraction form
    66,348.72/91,604.88 = 51,215.04/x
  3. Step 3: Cross multiply
    66,348.72x = 91,604.88 × 51,215.04
  4. Step 4: Simplify right side
    66,348.72x = 4,691,547,593.40
  5. Step 5: Solve for x
    x = 4,691,547,593.40/66,348.72
  6. Step 6: Final answer
    x = 70,710.45

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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.