Home / 58,186.12-80,305.22-42,105.64

Finding the Fourth Proportional to 58,186.12, 80,305.22 and 42,105.64

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Solution

The fourth proportional to 58,186.12, 80,305.22 and 42,105.64 is: 58,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,186.12 : 80,305.22 = 42,105.64 : x
  2. Step 2: Convert to fraction form
    58,186.12/80,305.22 = 42,105.64/x
  3. Step 3: Cross multiply
    58,186.12x = 80,305.22 × 42,105.64
  4. Step 4: Simplify right side
    58,186.12x = 3,381,302,683.44
  5. Step 5: Solve for x
    x = 3,381,302,683.44/58,186.12
  6. Step 6: Final answer
    x = 58,111.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.