Home / 100,292.48-138,409.44-57,852.80

Finding the Fourth Proportional to 100,292.48, 138,409.44 and 57,852.80

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Solution

The fourth proportional to 100,292.48, 138,409.44 and 57,852.80 is: 79,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292.48 : 138,409.44 = 57,852.80 : x
  2. Step 2: Convert to fraction form
    100,292.48/138,409.44 = 57,852.80/x
  3. Step 3: Cross multiply
    100,292.48x = 138,409.44 × 57,852.80
  4. Step 4: Simplify right side
    100,292.48x = 8,007,373,650.43
  5. Step 5: Solve for x
    x = 8,007,373,650.43/100,292.48
  6. Step 6: Final answer
    x = 79,840.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.