Home / 80,738.51-121,110.08-21,574.26

Finding the Fourth Proportional to 80,738.51, 121,110.08 and 21,574.26

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Solution

The fourth proportional to 80,738.51, 121,110.08 and 21,574.26 is: 32,362.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,738.51 : 121,110.08 = 21,574.26 : x
  2. Step 2: Convert to fraction form
    80,738.51/121,110.08 = 21,574.26/x
  3. Step 3: Cross multiply
    80,738.51x = 121,110.08 × 21,574.26
  4. Step 4: Simplify right side
    80,738.51x = 2,612,860,246.67
  5. Step 5: Solve for x
    x = 2,612,860,246.67/80,738.51
  6. Step 6: Final answer
    x = 32,362.01

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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.