Home / 71,388.41-98,510.58-39,556.62

Finding the Fourth Proportional to 71,388.41, 98,510.58 and 39,556.62

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Solution

The fourth proportional to 71,388.41, 98,510.58 and 39,556.62 is: 54,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,388.41 : 98,510.58 = 39,556.62 : x
  2. Step 2: Convert to fraction form
    71,388.41/98,510.58 = 39,556.62/x
  3. Step 3: Cross multiply
    71,388.41x = 98,510.58 × 39,556.62
  4. Step 4: Simplify right side
    71,388.41x = 3,896,745,579.04
  5. Step 5: Solve for x
    x = 3,896,745,579.04/71,388.41
  6. Step 6: Final answer
    x = 54,585.13

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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.