Home / 66,599.15-91,908.63-39,757.23

Finding the Fourth Proportional to 66,599.15, 91,908.63 and 39,757.23

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Solution

The fourth proportional to 66,599.15, 91,908.63 and 39,757.23 is: 54,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.15 : 91,908.63 = 39,757.23 : x
  2. Step 2: Convert to fraction form
    66,599.15/91,908.63 = 39,757.23/x
  3. Step 3: Cross multiply
    66,599.15x = 91,908.63 × 39,757.23
  4. Step 4: Simplify right side
    66,599.15x = 3,654,032,541.89
  5. Step 5: Solve for x
    x = 3,654,032,541.89/66,599.15
  6. Step 6: Final answer
    x = 54,866.05

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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.