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Finding the Fourth Proportional to 58,500.61, 80,730.62 and 31,643.09

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Solution

The fourth proportional to 58,500.61, 80,730.62 and 31,643.09 is: 43,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,500.61 : 80,730.62 = 31,643.09 : x
  2. Step 2: Convert to fraction form
    58,500.61/80,730.62 = 31,643.09/x
  3. Step 3: Cross multiply
    58,500.61x = 80,730.62 × 31,643.09
  4. Step 4: Simplify right side
    58,500.61x = 2,554,566,311.94
  5. Step 5: Solve for x
    x = 2,554,566,311.94/58,500.61
  6. Step 6: Final answer
    x = 43,667.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.