Home / 65,647.20-98,488.08-18,903.84

Finding the Fourth Proportional to 65,647.20, 98,488.08 and 18,903.84

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Solution

The fourth proportional to 65,647.20, 98,488.08 and 18,903.84 is: 28,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,647.20 : 98,488.08 = 18,903.84 : x
  2. Step 2: Convert to fraction form
    65,647.20/98,488.08 = 18,903.84/x
  3. Step 3: Cross multiply
    65,647.20x = 98,488.08 × 18,903.84
  4. Step 4: Simplify right side
    65,647.20x = 1,861,802,906.23
  5. Step 5: Solve for x
    x = 1,861,802,906.23/65,647.20
  6. Step 6: Final answer
    x = 28,360.74

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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.