Home / 66,176.37-91,313.69-39,320.01

Finding the Fourth Proportional to 66,176.37, 91,313.69 and 39,320.01

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Solution

The fourth proportional to 66,176.37, 91,313.69 and 39,320.01 is: 54,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,176.37 : 91,313.69 = 39,320.01 : x
  2. Step 2: Convert to fraction form
    66,176.37/91,313.69 = 39,320.01/x
  3. Step 3: Cross multiply
    66,176.37x = 91,313.69 × 39,320.01
  4. Step 4: Simplify right side
    66,176.37x = 3,590,455,007.34
  5. Step 5: Solve for x
    x = 3,590,455,007.34/66,176.37
  6. Step 6: Final answer
    x = 54,255.85

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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.