Home / 88,435.75-122,088.42-71,018.74

Finding the Fourth Proportional to 88,435.75, 122,088.42 and 71,018.74

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Solution

The fourth proportional to 88,435.75, 122,088.42 and 71,018.74 is: 98,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,435.75 : 122,088.42 = 71,018.74 : x
  2. Step 2: Convert to fraction form
    88,435.75/122,088.42 = 71,018.74/x
  3. Step 3: Cross multiply
    88,435.75x = 122,088.42 × 71,018.74
  4. Step 4: Simplify right side
    88,435.75x = 8,670,565,756.99
  5. Step 5: Solve for x
    x = 8,670,565,756.99/88,435.75
  6. Step 6: Final answer
    x = 98,043.67

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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.