Home / 66,269.86-91,417.56-39,393.26

Finding the Fourth Proportional to 66,269.86, 91,417.56 and 39,393.26

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Solution

The fourth proportional to 66,269.86, 91,417.56 and 39,393.26 is: 54,341.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,269.86 : 91,417.56 = 39,393.26 : x
  2. Step 2: Convert to fraction form
    66,269.86/91,417.56 = 39,393.26/x
  3. Step 3: Cross multiply
    66,269.86x = 91,417.56 × 39,393.26
  4. Step 4: Simplify right side
    66,269.86x = 3,601,235,709.65
  5. Step 5: Solve for x
    x = 3,601,235,709.65/66,269.86
  6. Step 6: Final answer
    x = 54,341.98

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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.