Home / 65,621.28-98,433-25,643.28

Finding the Fourth Proportional to 65,621.28, 98,433 and 25,643.28

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Solution

The fourth proportional to 65,621.28, 98,433 and 25,643.28 is: 38,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,621.28 : 98,433 = 25,643.28 : x
  2. Step 2: Convert to fraction form
    65,621.28/98,433 = 25,643.28/x
  3. Step 3: Cross multiply
    65,621.28x = 98,433 × 25,643.28
  4. Step 4: Simplify right side
    65,621.28x = 2,524,144,980.24
  5. Step 5: Solve for x
    x = 2,524,144,980.24/65,621.28
  6. Step 6: Final answer
    x = 38,465.34

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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.