Home / 71,297.40-98,389.20-39,465.60

Finding the Fourth Proportional to 71,297.40, 98,389.20 and 39,465.60

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Solution

The fourth proportional to 71,297.40, 98,389.20 and 39,465.60 is: 54,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,297.40 : 98,389.20 = 39,465.60 : x
  2. Step 2: Convert to fraction form
    71,297.40/98,389.20 = 39,465.60/x
  3. Step 3: Cross multiply
    71,297.40x = 98,389.20 × 39,465.60
  4. Step 4: Simplify right side
    71,297.40x = 3,882,988,811.52
  5. Step 5: Solve for x
    x = 3,882,988,811.52/71,297.40
  6. Step 6: Final answer
    x = 54,461.86

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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.