Home / 58,225.40-87,356.57-20,784.65

Finding the Fourth Proportional to 58,225.40, 87,356.57 and 20,784.65

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Solution

The fourth proportional to 58,225.40, 87,356.57 and 20,784.65 is: 31,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,225.40 : 87,356.57 = 20,784.65 : x
  2. Step 2: Convert to fraction form
    58,225.40/87,356.57 = 20,784.65/x
  3. Step 3: Cross multiply
    58,225.40x = 87,356.57 × 20,784.65
  4. Step 4: Simplify right side
    58,225.40x = 1,815,675,732.65
  5. Step 5: Solve for x
    x = 1,815,675,732.65/58,225.40
  6. Step 6: Final answer
    x = 31,183.57

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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.