Home / 66,633.39-91,938.92-39,784.59

Finding the Fourth Proportional to 66,633.39, 91,938.92 and 39,784.59

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Solution

The fourth proportional to 66,633.39, 91,938.92 and 39,784.59 is: 54,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,633.39 : 91,938.92 = 39,784.59 : x
  2. Step 2: Convert to fraction form
    66,633.39/91,938.92 = 39,784.59/x
  3. Step 3: Cross multiply
    66,633.39x = 91,938.92 × 39,784.59
  4. Step 4: Simplify right side
    66,633.39x = 3,657,752,038.32
  5. Step 5: Solve for x
    x = 3,657,752,038.32/66,633.39
  6. Step 6: Final answer
    x = 54,893.68

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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.