Home / 74,042.55-102,181.06-40,508.55

Finding the Fourth Proportional to 74,042.55, 102,181.06 and 40,508.55

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Solution

The fourth proportional to 74,042.55, 102,181.06 and 40,508.55 is: 55,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,042.55 : 102,181.06 = 40,508.55 : x
  2. Step 2: Convert to fraction form
    74,042.55/102,181.06 = 40,508.55/x
  3. Step 3: Cross multiply
    74,042.55x = 102,181.06 × 40,508.55
  4. Step 4: Simplify right side
    74,042.55x = 4,139,205,965.89
  5. Step 5: Solve for x
    x = 4,139,205,965.89/74,042.55
  6. Step 6: Final answer
    x = 55,903.08

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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.