Home / 74,332.08-111,530.82-30,045.36

Finding the Fourth Proportional to 74,332.08, 111,530.82 and 30,045.36

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Solution

The fourth proportional to 74,332.08, 111,530.82 and 30,045.36 is: 45,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.08 : 111,530.82 = 30,045.36 : x
  2. Step 2: Convert to fraction form
    74,332.08/111,530.82 = 30,045.36/x
  3. Step 3: Cross multiply
    74,332.08x = 111,530.82 × 30,045.36
  4. Step 4: Simplify right side
    74,332.08x = 3,350,983,638.00
  5. Step 5: Solve for x
    x = 3,350,983,638.00/74,332.08
  6. Step 6: Final answer
    x = 45,081.26

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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.