Home / 61,890.24-92,840.31-19,776.32

Finding the Fourth Proportional to 61,890.24, 92,840.31 and 19,776.32

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Solution

The fourth proportional to 61,890.24, 92,840.31 and 19,776.32 is: 29,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.24 : 92,840.31 = 19,776.32 : x
  2. Step 2: Convert to fraction form
    61,890.24/92,840.31 = 19,776.32/x
  3. Step 3: Cross multiply
    61,890.24x = 92,840.31 × 19,776.32
  4. Step 4: Simplify right side
    61,890.24x = 1,836,039,563.41
  5. Step 5: Solve for x
    x = 1,836,039,563.41/61,890.24
  6. Step 6: Final answer
    x = 29,666.06

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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.