Home / 74,739.34-103,141.65-40,748.10

Finding the Fourth Proportional to 74,739.34, 103,141.65 and 40,748.10

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Solution

The fourth proportional to 74,739.34, 103,141.65 and 40,748.10 is: 56,233.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,739.34 : 103,141.65 = 40,748.10 : x
  2. Step 2: Convert to fraction form
    74,739.34/103,141.65 = 40,748.10/x
  3. Step 3: Cross multiply
    74,739.34x = 103,141.65 × 40,748.10
  4. Step 4: Simplify right side
    74,739.34x = 4,202,826,268.37
  5. Step 5: Solve for x
    x = 4,202,826,268.37/74,739.34
  6. Step 6: Final answer
    x = 56,233.12

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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.