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Finding the Fourth Proportional to 56,485.50, 84,741.27 and 19,549.50

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Solution

The fourth proportional to 56,485.50, 84,741.27 and 19,549.50 is: 29,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,485.50 : 84,741.27 = 19,549.50 : x
  2. Step 2: Convert to fraction form
    56,485.50/84,741.27 = 19,549.50/x
  3. Step 3: Cross multiply
    56,485.50x = 84,741.27 × 19,549.50
  4. Step 4: Simplify right side
    56,485.50x = 1,656,649,457.87
  5. Step 5: Solve for x
    x = 1,656,649,457.87/56,485.50
  6. Step 6: Final answer
    x = 29,328.76

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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.