Home / 72,116.28-99,525.87-41,498.78

Finding the Fourth Proportional to 72,116.28, 99,525.87 and 41,498.78

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Solution

The fourth proportional to 72,116.28, 99,525.87 and 41,498.78 is: 57,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,116.28 : 99,525.87 = 41,498.78 : x
  2. Step 2: Convert to fraction form
    72,116.28/99,525.87 = 41,498.78/x
  3. Step 3: Cross multiply
    72,116.28x = 99,525.87 × 41,498.78
  4. Step 4: Simplify right side
    72,116.28x = 4,130,201,685.81
  5. Step 5: Solve for x
    x = 4,130,201,685.81/72,116.28
  6. Step 6: Final answer
    x = 57,271.42

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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.