Home / 81,024.30-121,521.06-34,309.98

Finding the Fourth Proportional to 81,024.30, 121,521.06 and 34,309.98

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Solution

The fourth proportional to 81,024.30, 121,521.06 and 34,309.98 is: 51,458.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.30 : 121,521.06 = 34,309.98 : x
  2. Step 2: Convert to fraction form
    81,024.30/121,521.06 = 34,309.98/x
  3. Step 3: Cross multiply
    81,024.30x = 121,521.06 × 34,309.98
  4. Step 4: Simplify right side
    81,024.30x = 4,169,385,138.18
  5. Step 5: Solve for x
    x = 4,169,385,138.18/81,024.30
  6. Step 6: Final answer
    x = 51,458.45

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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.