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Finding the Fourth Proportional to 65,412.80, 98,126.40 and 23,868.80

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Solution

The fourth proportional to 65,412.80, 98,126.40 and 23,868.80 is: 35,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,412.80 : 98,126.40 = 23,868.80 : x
  2. Step 2: Convert to fraction form
    65,412.80/98,126.40 = 23,868.80/x
  3. Step 3: Cross multiply
    65,412.80x = 98,126.40 × 23,868.80
  4. Step 4: Simplify right side
    65,412.80x = 2,342,159,416.32
  5. Step 5: Solve for x
    x = 2,342,159,416.32/65,412.80
  6. Step 6: Final answer
    x = 35,805.83

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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.