Home / 81,942.48-122,953.95-29,356.20

Finding the Fourth Proportional to 81,942.48, 122,953.95 and 29,356.20

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Solution

The fourth proportional to 81,942.48, 122,953.95 and 29,356.20 is: 44,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942.48 : 122,953.95 = 29,356.20 : x
  2. Step 2: Convert to fraction form
    81,942.48/122,953.95 = 29,356.20/x
  3. Step 3: Cross multiply
    81,942.48x = 122,953.95 × 29,356.20
  4. Step 4: Simplify right side
    81,942.48x = 3,609,460,746.99
  5. Step 5: Solve for x
    x = 3,609,460,746.99/81,942.48
  6. Step 6: Final answer
    x = 44,048.71

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1.5x scale

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.