Home / 92,485.86-138,728.78-39,186.24

Finding the Fourth Proportional to 92,485.86, 138,728.78 and 39,186.24

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Solution

The fourth proportional to 92,485.86, 138,728.78 and 39,186.24 is: 58,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,485.86 : 138,728.78 = 39,186.24 : x
  2. Step 2: Convert to fraction form
    92,485.86/138,728.78 = 39,186.24/x
  3. Step 3: Cross multiply
    92,485.86x = 138,728.78 × 39,186.24
  4. Step 4: Simplify right side
    92,485.86x = 5,436,259,267.99
  5. Step 5: Solve for x
    x = 5,436,259,267.99/92,485.86
  6. Step 6: Final answer
    x = 58,779.36

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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.