Home / 66,887.04-100,242.54-37,318.80

Finding the Fourth Proportional to 66,887.04, 100,242.54 and 37,318.80

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Solution

The fourth proportional to 66,887.04, 100,242.54 and 37,318.80 is: 55,929.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887.04 : 100,242.54 = 37,318.80 : x
  2. Step 2: Convert to fraction form
    66,887.04/100,242.54 = 37,318.80/x
  3. Step 3: Cross multiply
    66,887.04x = 100,242.54 × 37,318.80
  4. Step 4: Simplify right side
    66,887.04x = 3,740,931,301.75
  5. Step 5: Solve for x
    x = 3,740,931,301.75/66,887.04
  6. Step 6: Final answer
    x = 55,929.09

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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.