Home / 74,255.00-102,471.78-40,263.42

Finding the Fourth Proportional to 74,255.00, 102,471.78 and 40,263.42

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Solution

The fourth proportional to 74,255.00, 102,471.78 and 40,263.42 is: 55,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,255.00 : 102,471.78 = 40,263.42 : x
  2. Step 2: Convert to fraction form
    74,255.00/102,471.78 = 40,263.42/x
  3. Step 3: Cross multiply
    74,255.00x = 102,471.78 × 40,263.42
  4. Step 4: Simplify right side
    74,255.00x = 4,125,864,316.29
  5. Step 5: Solve for x
    x = 4,125,864,316.29/74,255.00
  6. Step 6: Final answer
    x = 55,563.46

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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.