Home / 66,081.02-91,191.93-37,786.70

Finding the Fourth Proportional to 66,081.02, 91,191.93 and 37,786.70

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Solution

The fourth proportional to 66,081.02, 91,191.93 and 37,786.70 is: 52,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,081.02 : 91,191.93 = 37,786.70 : x
  2. Step 2: Convert to fraction form
    66,081.02/91,191.93 = 37,786.70/x
  3. Step 3: Cross multiply
    66,081.02x = 91,191.93 × 37,786.70
  4. Step 4: Simplify right side
    66,081.02x = 3,445,842,187.61
  5. Step 5: Solve for x
    x = 3,445,842,187.61/66,081.02
  6. Step 6: Final answer
    x = 52,145.72

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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.