Home / 65,438.28-98,146.89-18,680.22

Finding the Fourth Proportional to 65,438.28, 98,146.89 and 18,680.22

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Solution

The fourth proportional to 65,438.28, 98,146.89 and 18,680.22 is: 28,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,438.28 : 98,146.89 = 18,680.22 : x
  2. Step 2: Convert to fraction form
    65,438.28/98,146.89 = 18,680.22/x
  3. Step 3: Cross multiply
    65,438.28x = 98,146.89 × 18,680.22
  4. Step 4: Simplify right side
    65,438.28x = 1,833,405,497.52
  5. Step 5: Solve for x
    x = 1,833,405,497.52/65,438.28
  6. Step 6: Final answer
    x = 28,017.32

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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.