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Finding the Fourth Proportional to 56,461.83, 84,705.53 and 19,020.88

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Solution

The fourth proportional to 56,461.83, 84,705.53 and 19,020.88 is: 28,535.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,461.83 : 84,705.53 = 19,020.88 : x
  2. Step 2: Convert to fraction form
    56,461.83/84,705.53 = 19,020.88/x
  3. Step 3: Cross multiply
    56,461.83x = 84,705.53 × 19,020.88
  4. Step 4: Simplify right side
    56,461.83x = 1,611,173,673.91
  5. Step 5: Solve for x
    x = 1,611,173,673.91/56,461.83
  6. Step 6: Final answer
    x = 28,535.63

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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.