Home / 65,749.20-98,623.80-28,885.20

Finding the Fourth Proportional to 65,749.20, 98,623.80 and 28,885.20

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Solution

The fourth proportional to 65,749.20, 98,623.80 and 28,885.20 is: 43,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.20 : 98,623.80 = 28,885.20 : x
  2. Step 2: Convert to fraction form
    65,749.20/98,623.80 = 28,885.20/x
  3. Step 3: Cross multiply
    65,749.20x = 98,623.80 × 28,885.20
  4. Step 4: Simplify right side
    65,749.20x = 2,848,768,187.76
  5. Step 5: Solve for x
    x = 2,848,768,187.76/65,749.20
  6. Step 6: Final answer
    x = 43,327.80

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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.