Home / 74,071.68-102,219.20-40,539.52

Finding the Fourth Proportional to 74,071.68, 102,219.20 and 40,539.52

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Solution

The fourth proportional to 74,071.68, 102,219.20 and 40,539.52 is: 55,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,071.68 : 102,219.20 = 40,539.52 : x
  2. Step 2: Convert to fraction form
    74,071.68/102,219.20 = 40,539.52/x
  3. Step 3: Cross multiply
    74,071.68x = 102,219.20 × 40,539.52
  4. Step 4: Simplify right side
    74,071.68x = 4,143,917,302.78
  5. Step 5: Solve for x
    x = 4,143,917,302.78/74,071.68
  6. Step 6: Final answer
    x = 55,944.69

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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.