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Finding the Fourth Proportional to 79,804.81, 110,129.29 and 43,506.65

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Solution

The fourth proportional to 79,804.81, 110,129.29 and 43,506.65 is: 60,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,804.81 : 110,129.29 = 43,506.65 : x
  2. Step 2: Convert to fraction form
    79,804.81/110,129.29 = 43,506.65/x
  3. Step 3: Cross multiply
    79,804.81x = 110,129.29 × 43,506.65
  4. Step 4: Simplify right side
    79,804.81x = 4,791,356,474.78
  5. Step 5: Solve for x
    x = 4,791,356,474.78/79,804.81
  6. Step 6: Final answer
    x = 60,038.44

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1.5x scale

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.