Home / 43,269.60-64,760.40-31,389.60

Finding the Fourth Proportional to 43,269.60, 64,760.40 and 31,389.60

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Solution

The fourth proportional to 43,269.60, 64,760.40 and 31,389.60 is: 46,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,269.60 : 64,760.40 = 31,389.60 : x
  2. Step 2: Convert to fraction form
    43,269.60/64,760.40 = 31,389.60/x
  3. Step 3: Cross multiply
    43,269.60x = 64,760.40 × 31,389.60
  4. Step 4: Simplify right side
    43,269.60x = 2,032,803,051.84
  5. Step 5: Solve for x
    x = 2,032,803,051.84/43,269.60
  6. Step 6: Final answer
    x = 46,979.94

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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.