Home / 71,262.56-98,338.20-39,429.56

Finding the Fourth Proportional to 71,262.56, 98,338.20 and 39,429.56

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Solution

The fourth proportional to 71,262.56, 98,338.20 and 39,429.56 is: 54,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,262.56 : 98,338.20 = 39,429.56 : x
  2. Step 2: Convert to fraction form
    71,262.56/98,338.20 = 39,429.56/x
  3. Step 3: Cross multiply
    71,262.56x = 98,338.20 × 39,429.56
  4. Step 4: Simplify right side
    71,262.56x = 3,877,431,465.50
  5. Step 5: Solve for x
    x = 3,877,431,465.50/71,262.56
  6. Step 6: Final answer
    x = 54,410.50

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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.