Home / 79,136.10-118,735.47-34,731.90

Finding the Fourth Proportional to 79,136.10, 118,735.47 and 34,731.90

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Solution

The fourth proportional to 79,136.10, 118,735.47 and 34,731.90 is: 52,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.10 : 118,735.47 = 34,731.90 : x
  2. Step 2: Convert to fraction form
    79,136.10/118,735.47 = 34,731.90/x
  3. Step 3: Cross multiply
    79,136.10x = 118,735.47 × 34,731.90
  4. Step 4: Simplify right side
    79,136.10x = 4,123,908,470.49
  5. Step 5: Solve for x
    x = 4,123,908,470.49/79,136.10
  6. Step 6: Final answer
    x = 52,111.60

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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.