Home / 85,280.05-127,963.21-56,836.41

Finding the Fourth Proportional to 85,280.05, 127,963.21 and 56,836.41

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Solution

The fourth proportional to 85,280.05, 127,963.21 and 56,836.41 is: 85,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,280.05 : 127,963.21 = 56,836.41 : x
  2. Step 2: Convert to fraction form
    85,280.05/127,963.21 = 56,836.41/x
  3. Step 3: Cross multiply
    85,280.05x = 127,963.21 × 56,836.41
  4. Step 4: Simplify right side
    85,280.05x = 7,272,969,468.48
  5. Step 5: Solve for x
    x = 7,272,969,468.48/85,280.05
  6. Step 6: Final answer
    x = 85,283.36

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1.5x scale

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.