Home / 71,190.12-98,243.01-38,925.66

Finding the Fourth Proportional to 71,190.12, 98,243.01 and 38,925.66

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Solution

The fourth proportional to 71,190.12, 98,243.01 and 38,925.66 is: 53,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.12 : 98,243.01 = 38,925.66 : x
  2. Step 2: Convert to fraction form
    71,190.12/98,243.01 = 38,925.66/x
  3. Step 3: Cross multiply
    71,190.12x = 98,243.01 × 38,925.66
  4. Step 4: Simplify right side
    71,190.12x = 3,824,174,004.64
  5. Step 5: Solve for x
    x = 3,824,174,004.64/71,190.12
  6. Step 6: Final answer
    x = 53,717.76

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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.