Home / 74,659.20-103,026.80-40,667.16

Finding the Fourth Proportional to 74,659.20, 103,026.80 and 40,667.16

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Solution

The fourth proportional to 74,659.20, 103,026.80 and 40,667.16 is: 56,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.20 : 103,026.80 = 40,667.16 : x
  2. Step 2: Convert to fraction form
    74,659.20/103,026.80 = 40,667.16/x
  3. Step 3: Cross multiply
    74,659.20x = 103,026.80 × 40,667.16
  4. Step 4: Simplify right side
    74,659.20x = 4,189,807,359.89
  5. Step 5: Solve for x
    x = 4,189,807,359.89/74,659.20
  6. Step 6: Final answer
    x = 56,119.10

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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.