Home / 89,118.52-122,981.63-48,831.41

Finding the Fourth Proportional to 89,118.52, 122,981.63 and 48,831.41

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Solution

The fourth proportional to 89,118.52, 122,981.63 and 48,831.41 is: 67,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,118.52 : 122,981.63 = 48,831.41 : x
  2. Step 2: Convert to fraction form
    89,118.52/122,981.63 = 48,831.41/x
  3. Step 3: Cross multiply
    89,118.52x = 122,981.63 × 48,831.41
  4. Step 4: Simplify right side
    89,118.52x = 6,005,366,460.30
  5. Step 5: Solve for x
    x = 6,005,366,460.30/89,118.52
  6. Step 6: Final answer
    x = 67,386.29

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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.