Home / 65,661.12-90,589.86-37,359.72

Finding the Fourth Proportional to 65,661.12, 90,589.86 and 37,359.72

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Solution

The fourth proportional to 65,661.12, 90,589.86 and 37,359.72 is: 51,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,661.12 : 90,589.86 = 37,359.72 : x
  2. Step 2: Convert to fraction form
    65,661.12/90,589.86 = 37,359.72/x
  3. Step 3: Cross multiply
    65,661.12x = 90,589.86 × 37,359.72
  4. Step 4: Simplify right side
    65,661.12x = 3,384,411,804.44
  5. Step 5: Solve for x
    x = 3,384,411,804.44/65,661.12
  6. Step 6: Final answer
    x = 51,543.62

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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.