Home / 75,136.10-112,662.02-51,470.40

Finding the Fourth Proportional to 75,136.10, 112,662.02 and 51,470.40

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Solution

The fourth proportional to 75,136.10, 112,662.02 and 51,470.40 is: 77,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.10 : 112,662.02 = 51,470.40 : x
  2. Step 2: Convert to fraction form
    75,136.10/112,662.02 = 51,470.40/x
  3. Step 3: Cross multiply
    75,136.10x = 112,662.02 × 51,470.40
  4. Step 4: Simplify right side
    75,136.10x = 5,798,759,234.21
  5. Step 5: Solve for x
    x = 5,798,759,234.21/75,136.10
  6. Step 6: Final answer
    x = 77,176.74

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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.