Home / 61,056.89-91,586.28-21,586.40

Finding the Fourth Proportional to 61,056.89, 91,586.28 and 21,586.40

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Solution

The fourth proportional to 61,056.89, 91,586.28 and 21,586.40 is: 32,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,056.89 : 91,586.28 = 21,586.40 : x
  2. Step 2: Convert to fraction form
    61,056.89/91,586.28 = 21,586.40/x
  3. Step 3: Cross multiply
    61,056.89x = 91,586.28 × 21,586.40
  4. Step 4: Simplify right side
    61,056.89x = 1,977,017,791.66
  5. Step 5: Solve for x
    x = 1,977,017,791.66/61,056.89
  6. Step 6: Final answer
    x = 32,379.93

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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.