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Finding the Fourth Proportional to 65,499.78, 98,167.47 and 28,015.77

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Solution

The fourth proportional to 65,499.78, 98,167.47 and 28,015.77 is: 41,988.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,499.78 : 98,167.47 = 28,015.77 : x
  2. Step 2: Convert to fraction form
    65,499.78/98,167.47 = 28,015.77/x
  3. Step 3: Cross multiply
    65,499.78x = 98,167.47 × 28,015.77
  4. Step 4: Simplify right side
    65,499.78x = 2,750,237,261.00
  5. Step 5: Solve for x
    x = 2,750,237,261.00/65,499.78
  6. Step 6: Final answer
    x = 41,988.50

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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.