Home / 74,871.14-112,302.39-45,281.03

Finding the Fourth Proportional to 74,871.14, 112,302.39 and 45,281.03

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Solution

The fourth proportional to 74,871.14, 112,302.39 and 45,281.03 is: 67,918.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,871.14 : 112,302.39 = 45,281.03 : x
  2. Step 2: Convert to fraction form
    74,871.14/112,302.39 = 45,281.03/x
  3. Step 3: Cross multiply
    74,871.14x = 112,302.39 × 45,281.03
  4. Step 4: Simplify right side
    74,871.14x = 5,085,167,890.66
  5. Step 5: Solve for x
    x = 5,085,167,890.66/74,871.14
  6. Step 6: Final answer
    x = 67,918.93

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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.