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Finding the Fourth Proportional to 66,305.58, 91,509.48 and 37,238.71

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Solution

The fourth proportional to 66,305.58, 91,509.48 and 37,238.71 is: 51,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305.58 : 91,509.48 = 37,238.71 : x
  2. Step 2: Convert to fraction form
    66,305.58/91,509.48 = 37,238.71/x
  3. Step 3: Cross multiply
    66,305.58x = 91,509.48 × 37,238.71
  4. Step 4: Simplify right side
    66,305.58x = 3,407,695,102.36
  5. Step 5: Solve for x
    x = 3,407,695,102.36/66,305.58
  6. Step 6: Final answer
    x = 51,393.79

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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.