Home / 65,742.20-98,613.30-28,878.20

Finding the Fourth Proportional to 65,742.20, 98,613.30 and 28,878.20

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Solution

The fourth proportional to 65,742.20, 98,613.30 and 28,878.20 is: 43,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,742.20 : 98,613.30 = 28,878.20 : x
  2. Step 2: Convert to fraction form
    65,742.20/98,613.30 = 28,878.20/x
  3. Step 3: Cross multiply
    65,742.20x = 98,613.30 × 28,878.20
  4. Step 4: Simplify right side
    65,742.20x = 2,847,774,600.06
  5. Step 5: Solve for x
    x = 2,847,774,600.06/65,742.20
  6. Step 6: Final answer
    x = 43,317.30

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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.