Home / 66,019.10-91,098.00-39,156.36

Finding the Fourth Proportional to 66,019.10, 91,098.00 and 39,156.36

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Solution

The fourth proportional to 66,019.10, 91,098.00 and 39,156.36 is: 54,030.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,019.10 : 91,098.00 = 39,156.36 : x
  2. Step 2: Convert to fraction form
    66,019.10/91,098.00 = 39,156.36/x
  3. Step 3: Cross multiply
    66,019.10x = 91,098.00 × 39,156.36
  4. Step 4: Simplify right side
    66,019.10x = 3,567,066,419.28
  5. Step 5: Solve for x
    x = 3,567,066,419.28/66,019.10
  6. Step 6: Final answer
    x = 54,030.82

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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.