Home / 74,533.90-111,910.20-45,009.40

Finding the Fourth Proportional to 74,533.90, 111,910.20 and 45,009.40

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Solution

The fourth proportional to 74,533.90, 111,910.20 and 45,009.40 is: 67,580.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,533.90 : 111,910.20 = 45,009.40 : x
  2. Step 2: Convert to fraction form
    74,533.90/111,910.20 = 45,009.40/x
  3. Step 3: Cross multiply
    74,533.90x = 111,910.20 × 45,009.40
  4. Step 4: Simplify right side
    74,533.90x = 5,037,010,955.88
  5. Step 5: Solve for x
    x = 5,037,010,955.88/74,533.90
  6. Step 6: Final answer
    x = 67,580.13

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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.