Home / 43,176-64,766.16-40,903.68

Finding the Fourth Proportional to 43,176, 64,766.16 and 40,903.68

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Solution

The fourth proportional to 43,176, 64,766.16 and 40,903.68 is: 61,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,176 : 64,766.16 = 40,903.68 : x
  2. Step 2: Convert to fraction form
    43,176/64,766.16 = 40,903.68/x
  3. Step 3: Cross multiply
    43,176x = 64,766.16 × 40,903.68
  4. Step 4: Simplify right side
    43,176x = 2,649,174,283.47
  5. Step 5: Solve for x
    x = 2,649,174,283.47/43,176
  6. Step 6: Final answer
    x = 61,357.57

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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.