Home / 74,315.48-102,601.86-51,647.72

Finding the Fourth Proportional to 74,315.48, 102,601.86 and 51,647.72

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Solution

The fourth proportional to 74,315.48, 102,601.86 and 51,647.72 is: 71,306.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,315.48 : 102,601.86 = 51,647.72 : x
  2. Step 2: Convert to fraction form
    74,315.48/102,601.86 = 51,647.72/x
  3. Step 3: Cross multiply
    74,315.48x = 102,601.86 × 51,647.72
  4. Step 4: Simplify right side
    74,315.48x = 5,299,152,136.76
  5. Step 5: Solve for x
    x = 5,299,152,136.76/74,315.48
  6. Step 6: Final answer
    x = 71,306.17

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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.