Home / 56,815.73-78,411.24-42,450.63

Finding the Fourth Proportional to 56,815.73, 78,411.24 and 42,450.63

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Solution

The fourth proportional to 56,815.73, 78,411.24 and 42,450.63 is: 58,586.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,815.73 : 78,411.24 = 42,450.63 : x
  2. Step 2: Convert to fraction form
    56,815.73/78,411.24 = 42,450.63/x
  3. Step 3: Cross multiply
    56,815.73x = 78,411.24 × 42,450.63
  4. Step 4: Simplify right side
    56,815.73x = 3,328,606,537.08
  5. Step 5: Solve for x
    x = 3,328,606,537.08/56,815.73
  6. Step 6: Final answer
    x = 58,586.01

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Why These Related Problems?

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