Home / 65,920.14-98,880.21-38,237.58

Finding the Fourth Proportional to 65,920.14, 98,880.21 and 38,237.58

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Solution

The fourth proportional to 65,920.14, 98,880.21 and 38,237.58 is: 57,356.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.14 : 98,880.21 = 38,237.58 : x
  2. Step 2: Convert to fraction form
    65,920.14/98,880.21 = 38,237.58/x
  3. Step 3: Cross multiply
    65,920.14x = 98,880.21 × 38,237.58
  4. Step 4: Simplify right side
    65,920.14x = 3,780,939,940.29
  5. Step 5: Solve for x
    x = 3,780,939,940.29/65,920.14
  6. Step 6: Final answer
    x = 57,356.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.