Home / 71,215.99-98,213.03-61,141.21

Finding the Fourth Proportional to 71,215.99, 98,213.03 and 61,141.21

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Solution

The fourth proportional to 71,215.99, 98,213.03 and 61,141.21 is: 84,319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,215.99 : 98,213.03 = 61,141.21 : x
  2. Step 2: Convert to fraction form
    71,215.99/98,213.03 = 61,141.21/x
  3. Step 3: Cross multiply
    71,215.99x = 98,213.03 × 61,141.21
  4. Step 4: Simplify right side
    71,215.99x = 6,004,863,491.97
  5. Step 5: Solve for x
    x = 6,004,863,491.97/71,215.99
  6. Step 6: Final answer
    x = 84,319.03

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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.