Home / 81,569.04-122,194.32-56,208.84

Finding the Fourth Proportional to 81,569.04, 122,194.32 and 56,208.84

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Solution

The fourth proportional to 81,569.04, 122,194.32 and 56,208.84 is: 84,203.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,569.04 : 122,194.32 = 56,208.84 : x
  2. Step 2: Convert to fraction form
    81,569.04/122,194.32 = 56,208.84/x
  3. Step 3: Cross multiply
    81,569.04x = 122,194.32 × 56,208.84
  4. Step 4: Simplify right side
    81,569.04x = 6,868,400,981.79
  5. Step 5: Solve for x
    x = 6,868,400,981.79/81,569.04
  6. Step 6: Final answer
    x = 84,203.53

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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.