Home / 71,579.84-98,784.63-39,749.27

Finding the Fourth Proportional to 71,579.84, 98,784.63 and 39,749.27

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Solution

The fourth proportional to 71,579.84, 98,784.63 and 39,749.27 is: 54,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,579.84 : 98,784.63 = 39,749.27 : x
  2. Step 2: Convert to fraction form
    71,579.84/98,784.63 = 39,749.27/x
  3. Step 3: Cross multiply
    71,579.84x = 98,784.63 × 39,749.27
  4. Step 4: Simplify right side
    71,579.84x = 3,926,616,435.80
  5. Step 5: Solve for x
    x = 3,926,616,435.80/71,579.84
  6. Step 6: Final answer
    x = 54,856.46

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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.