Home / 66,810.64-92,215.32-38,533.36

Finding the Fourth Proportional to 66,810.64, 92,215.32 and 38,533.36

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Solution

The fourth proportional to 66,810.64, 92,215.32 and 38,533.36 is: 53,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.64 : 92,215.32 = 38,533.36 : x
  2. Step 2: Convert to fraction form
    66,810.64/92,215.32 = 38,533.36/x
  3. Step 3: Cross multiply
    66,810.64x = 92,215.32 × 38,533.36
  4. Step 4: Simplify right side
    66,810.64x = 3,553,366,123.08
  5. Step 5: Solve for x
    x = 3,553,366,123.08/66,810.64
  6. Step 6: Final answer
    x = 53,185.63

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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.