Home / 51,030.18-76,467.29-21,431.79

Finding the Fourth Proportional to 51,030.18, 76,467.29 and 21,431.79

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Solution

The fourth proportional to 51,030.18, 76,467.29 and 21,431.79 is: 32,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.18 : 76,467.29 = 21,431.79 : x
  2. Step 2: Convert to fraction form
    51,030.18/76,467.29 = 21,431.79/x
  3. Step 3: Cross multiply
    51,030.18x = 76,467.29 × 21,431.79
  4. Step 4: Simplify right side
    51,030.18x = 1,638,830,793.99
  5. Step 5: Solve for x
    x = 1,638,830,793.99/51,030.18
  6. Step 6: Final answer
    x = 32,114.93

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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.