Home / 65,519.48-98,278.68-18,772.40

Finding the Fourth Proportional to 65,519.48, 98,278.68 and 18,772.40

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Solution

The fourth proportional to 65,519.48, 98,278.68 and 18,772.40 is: 28,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,519.48 : 98,278.68 = 18,772.40 : x
  2. Step 2: Convert to fraction form
    65,519.48/98,278.68 = 18,772.40/x
  3. Step 3: Cross multiply
    65,519.48x = 98,278.68 × 18,772.40
  4. Step 4: Simplify right side
    65,519.48x = 1,844,926,692.43
  5. Step 5: Solve for x
    x = 1,844,926,692.43/65,519.48
  6. Step 6: Final answer
    x = 28,158.45

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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.