Home / 65,078.79-97,621.61-18,335.31

Finding the Fourth Proportional to 65,078.79, 97,621.61 and 18,335.31

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Solution

The fourth proportional to 65,078.79, 97,621.61 and 18,335.31 is: 27,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,078.79 : 97,621.61 = 18,335.31 : x
  2. Step 2: Convert to fraction form
    65,078.79/97,621.61 = 18,335.31/x
  3. Step 3: Cross multiply
    65,078.79x = 97,621.61 × 18,335.31
  4. Step 4: Simplify right side
    65,078.79x = 1,789,922,390.37
  5. Step 5: Solve for x
    x = 1,789,922,390.37/65,078.79
  6. Step 6: Final answer
    x = 27,503.93

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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.