Home / 89,124.02-122,989.21-48,836.91

Finding the Fourth Proportional to 89,124.02, 122,989.21 and 48,836.91

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Solution

The fourth proportional to 89,124.02, 122,989.21 and 48,836.91 is: 67,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,124.02 : 122,989.21 = 48,836.91 : x
  2. Step 2: Convert to fraction form
    89,124.02/122,989.21 = 48,836.91/x
  3. Step 3: Cross multiply
    89,124.02x = 122,989.21 × 48,836.91
  4. Step 4: Simplify right side
    89,124.02x = 6,006,412,979.74
  5. Step 5: Solve for x
    x = 6,006,412,979.74/89,124.02
  6. Step 6: Final answer
    x = 67,393.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.