Home / 66,505.11-99,756.61-30,946.54

Finding the Fourth Proportional to 66,505.11, 99,756.61 and 30,946.54

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Solution

The fourth proportional to 66,505.11, 99,756.61 and 30,946.54 is: 46,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,505.11 : 99,756.61 = 30,946.54 : x
  2. Step 2: Convert to fraction form
    66,505.11/99,756.61 = 30,946.54/x
  3. Step 3: Cross multiply
    66,505.11x = 99,756.61 × 30,946.54
  4. Step 4: Simplify right side
    66,505.11x = 3,087,121,407.83
  5. Step 5: Solve for x
    x = 3,087,121,407.83/66,505.11
  6. Step 6: Final answer
    x = 46,419.31

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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.