Home / 65,421.74-98,132.61-18,037.20

Finding the Fourth Proportional to 65,421.74, 98,132.61 and 18,037.20

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Solution

The fourth proportional to 65,421.74, 98,132.61 and 18,037.20 is: 27,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421.74 : 98,132.61 = 18,037.20 : x
  2. Step 2: Convert to fraction form
    65,421.74/98,132.61 = 18,037.20/x
  3. Step 3: Cross multiply
    65,421.74x = 98,132.61 × 18,037.20
  4. Step 4: Simplify right side
    65,421.74x = 1,770,037,396.73
  5. Step 5: Solve for x
    x = 1,770,037,396.73/65,421.74
  6. Step 6: Final answer
    x = 27,055.80

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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.