Home / 74,984.12-112,476.18-19,579.64

Finding the Fourth Proportional to 74,984.12, 112,476.18 and 19,579.64

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Solution

The fourth proportional to 74,984.12, 112,476.18 and 19,579.64 is: 29,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984.12 : 112,476.18 = 19,579.64 : x
  2. Step 2: Convert to fraction form
    74,984.12/112,476.18 = 19,579.64/x
  3. Step 3: Cross multiply
    74,984.12x = 112,476.18 × 19,579.64
  4. Step 4: Simplify right side
    74,984.12x = 2,202,243,112.98
  5. Step 5: Solve for x
    x = 2,202,243,112.98/74,984.12
  6. Step 6: Final answer
    x = 29,369.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.