Home / 51,040.80-76,570.38-21,038.34

Finding the Fourth Proportional to 51,040.80, 76,570.38 and 21,038.34

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Solution

The fourth proportional to 51,040.80, 76,570.38 and 21,038.34 is: 31,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.80 : 76,570.38 = 21,038.34 : x
  2. Step 2: Convert to fraction form
    51,040.80/76,570.38 = 21,038.34/x
  3. Step 3: Cross multiply
    51,040.80x = 76,570.38 × 21,038.34
  4. Step 4: Simplify right side
    51,040.80x = 1,610,913,688.37
  5. Step 5: Solve for x
    x = 1,610,913,688.37/51,040.80
  6. Step 6: Final answer
    x = 31,561.29

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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.