Home / 65,922.12-98,881.56-19,175.40

Finding the Fourth Proportional to 65,922.12, 98,881.56 and 19,175.40

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Solution

The fourth proportional to 65,922.12, 98,881.56 and 19,175.40 is: 28,762.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,922.12 : 98,881.56 = 19,175.40 : x
  2. Step 2: Convert to fraction form
    65,922.12/98,881.56 = 19,175.40/x
  3. Step 3: Cross multiply
    65,922.12x = 98,881.56 × 19,175.40
  4. Step 4: Simplify right side
    65,922.12x = 1,896,093,465.62
  5. Step 5: Solve for x
    x = 1,896,093,465.62/65,922.12
  6. Step 6: Final answer
    x = 28,762.63

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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.