Home / 66,404.46-91,634.58-38,108.28

Finding the Fourth Proportional to 66,404.46, 91,634.58 and 38,108.28

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Solution

The fourth proportional to 66,404.46, 91,634.58 and 38,108.28 is: 52,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404.46 : 91,634.58 = 38,108.28 : x
  2. Step 2: Convert to fraction form
    66,404.46/91,634.58 = 38,108.28/x
  3. Step 3: Cross multiply
    66,404.46x = 91,634.58 × 38,108.28
  4. Step 4: Simplify right side
    66,404.46x = 3,492,036,232.32
  5. Step 5: Solve for x
    x = 3,492,036,232.32/66,404.46
  6. Step 6: Final answer
    x = 52,587.37

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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.