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Finding the Fourth Proportional to 65,340.50, 98,010.75 and 28,404.50

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Solution

The fourth proportional to 65,340.50, 98,010.75 and 28,404.50 is: 42,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,340.50 : 98,010.75 = 28,404.50 : x
  2. Step 2: Convert to fraction form
    65,340.50/98,010.75 = 28,404.50/x
  3. Step 3: Cross multiply
    65,340.50x = 98,010.75 × 28,404.50
  4. Step 4: Simplify right side
    65,340.50x = 2,783,946,348.38
  5. Step 5: Solve for x
    x = 2,783,946,348.38/65,340.50
  6. Step 6: Final answer
    x = 42,606.75

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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.