Home / 90,052.18-135,045.87-30,871.96

Finding the Fourth Proportional to 90,052.18, 135,045.87 and 30,871.96

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Solution

The fourth proportional to 90,052.18, 135,045.87 and 30,871.96 is: 46,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,052.18 : 135,045.87 = 30,871.96 : x
  2. Step 2: Convert to fraction form
    90,052.18/135,045.87 = 30,871.96/x
  3. Step 3: Cross multiply
    90,052.18x = 135,045.87 × 30,871.96
  4. Step 4: Simplify right side
    90,052.18x = 4,169,130,696.81
  5. Step 5: Solve for x
    x = 4,169,130,696.81/90,052.18
  6. Step 6: Final answer
    x = 46,296.83

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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.