Home / 51,018.96-76,529.21-19,430.77

Finding the Fourth Proportional to 51,018.96, 76,529.21 and 19,430.77

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Solution

The fourth proportional to 51,018.96, 76,529.21 and 19,430.77 is: 29,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,018.96 : 76,529.21 = 19,430.77 : x
  2. Step 2: Convert to fraction form
    51,018.96/76,529.21 = 19,430.77/x
  3. Step 3: Cross multiply
    51,018.96x = 76,529.21 × 19,430.77
  4. Step 4: Simplify right side
    51,018.96x = 1,487,021,477.79
  5. Step 5: Solve for x
    x = 1,487,021,477.79/51,018.96
  6. Step 6: Final answer
    x = 29,146.45

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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.