Home / 72,914.07-100,400.00-60,119.31

Finding the Fourth Proportional to 72,914.07, 100,400.00 and 60,119.31

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Solution

The fourth proportional to 72,914.07, 100,400.00 and 60,119.31 is: 82,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914.07 : 100,400.00 = 60,119.31 : x
  2. Step 2: Convert to fraction form
    72,914.07/100,400.00 = 60,119.31/x
  3. Step 3: Cross multiply
    72,914.07x = 100,400.00 × 60,119.31
  4. Step 4: Simplify right side
    72,914.07x = 6,035,978,423.40
  5. Step 5: Solve for x
    x = 6,035,978,423.40/72,914.07
  6. Step 6: Final answer
    x = 82,782.08

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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.