Home / 89,125.76-122,988.21-48,831.50

Finding the Fourth Proportional to 89,125.76, 122,988.21 and 48,831.50

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Solution

The fourth proportional to 89,125.76, 122,988.21 and 48,831.50 is: 67,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,125.76 : 122,988.21 = 48,831.50 : x
  2. Step 2: Convert to fraction form
    89,125.76/122,988.21 = 48,831.50/x
  3. Step 3: Cross multiply
    89,125.76x = 122,988.21 × 48,831.50
  4. Step 4: Simplify right side
    89,125.76x = 6,005,698,776.62
  5. Step 5: Solve for x
    x = 6,005,698,776.62/89,125.76
  6. Step 6: Final answer
    x = 67,384.54

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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.