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Finding the Fourth Proportional to 42,886.80, 64,174.68 and 36,238.32

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Solution

The fourth proportional to 42,886.80, 64,174.68 and 36,238.32 is: 54,226.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,886.80 : 64,174.68 = 36,238.32 : x
  2. Step 2: Convert to fraction form
    42,886.80/64,174.68 = 36,238.32/x
  3. Step 3: Cross multiply
    42,886.80x = 64,174.68 × 36,238.32
  4. Step 4: Simplify right side
    42,886.80x = 2,325,582,589.74
  5. Step 5: Solve for x
    x = 2,325,582,589.74/42,886.80
  6. Step 6: Final answer
    x = 54,226.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.