Home / 78,408.72-117,577.40-46,832.80

Finding the Fourth Proportional to 78,408.72, 117,577.40 and 46,832.80

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Solution

The fourth proportional to 78,408.72, 117,577.40 and 46,832.80 is: 70,227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,408.72 : 117,577.40 = 46,832.80 : x
  2. Step 2: Convert to fraction form
    78,408.72/117,577.40 = 46,832.80/x
  3. Step 3: Cross multiply
    78,408.72x = 117,577.40 × 46,832.80
  4. Step 4: Simplify right side
    78,408.72x = 5,506,478,858.72
  5. Step 5: Solve for x
    x = 5,506,478,858.72/78,408.72
  6. Step 6: Final answer
    x = 70,227.89

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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.