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Finding the Fourth Proportional to 79,782.40, 119,673.60 and 65,512.23

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Solution

The fourth proportional to 79,782.40, 119,673.60 and 65,512.23 is: 98,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,782.40 : 119,673.60 = 65,512.23 : x
  2. Step 2: Convert to fraction form
    79,782.40/119,673.60 = 65,512.23/x
  3. Step 3: Cross multiply
    79,782.40x = 119,673.60 × 65,512.23
  4. Step 4: Simplify right side
    79,782.40x = 7,840,084,408.13
  5. Step 5: Solve for x
    x = 7,840,084,408.13/79,782.40
  6. Step 6: Final answer
    x = 98,268.35

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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.