Home / 78,661.98-118,031.04-39,224.70

Finding the Fourth Proportional to 78,661.98, 118,031.04 and 39,224.70

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Solution

The fourth proportional to 78,661.98, 118,031.04 and 39,224.70 is: 58,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,661.98 : 118,031.04 = 39,224.70 : x
  2. Step 2: Convert to fraction form
    78,661.98/118,031.04 = 39,224.70/x
  3. Step 3: Cross multiply
    78,661.98x = 118,031.04 × 39,224.70
  4. Step 4: Simplify right side
    78,661.98x = 4,629,732,134.69
  5. Step 5: Solve for x
    x = 4,629,732,134.69/78,661.98
  6. Step 6: Final answer
    x = 58,856.03

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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.