Home / 56,690.16-85,051.68-21,632.64

Finding the Fourth Proportional to 56,690.16, 85,051.68 and 21,632.64

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Solution

The fourth proportional to 56,690.16, 85,051.68 and 21,632.64 is: 32,455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.16 : 85,051.68 = 21,632.64 : x
  2. Step 2: Convert to fraction form
    56,690.16/85,051.68 = 21,632.64/x
  3. Step 3: Cross multiply
    56,690.16x = 85,051.68 × 21,632.64
  4. Step 4: Simplify right side
    56,690.16x = 1,839,892,374.84
  5. Step 5: Solve for x
    x = 1,839,892,374.84/56,690.16
  6. Step 6: Final answer
    x = 32,455.23

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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.