Home / 43,140.03-64,804.40-30,739.74

Finding the Fourth Proportional to 43,140.03, 64,804.40 and 30,739.74

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Solution

The fourth proportional to 43,140.03, 64,804.40 and 30,739.74 is: 46,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.03 : 64,804.40 = 30,739.74 : x
  2. Step 2: Convert to fraction form
    43,140.03/64,804.40 = 30,739.74/x
  3. Step 3: Cross multiply
    43,140.03x = 64,804.40 × 30,739.74
  4. Step 4: Simplify right side
    43,140.03x = 1,992,070,253.16
  5. Step 5: Solve for x
    x = 1,992,070,253.16/43,140.03
  6. Step 6: Final answer
    x = 46,176.84

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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.