Home / 66,634.96-91,957.36-39,772.24

Finding the Fourth Proportional to 66,634.96, 91,957.36 and 39,772.24

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Solution

The fourth proportional to 66,634.96, 91,957.36 and 39,772.24 is: 54,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,634.96 : 91,957.36 = 39,772.24 : x
  2. Step 2: Convert to fraction form
    66,634.96/91,957.36 = 39,772.24/x
  3. Step 3: Cross multiply
    66,634.96x = 91,957.36 × 39,772.24
  4. Step 4: Simplify right side
    66,634.96x = 3,657,350,191.69
  5. Step 5: Solve for x
    x = 3,657,350,191.69/66,634.96
  6. Step 6: Final answer
    x = 54,886.36

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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.