Home / 71,325.73-98,422.60-42,639.69

Finding the Fourth Proportional to 71,325.73, 98,422.60 and 42,639.69

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Solution

The fourth proportional to 71,325.73, 98,422.60 and 42,639.69 is: 58,838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.73 : 98,422.60 = 42,639.69 : x
  2. Step 2: Convert to fraction form
    71,325.73/98,422.60 = 42,639.69/x
  3. Step 3: Cross multiply
    71,325.73x = 98,422.60 × 42,639.69
  4. Step 4: Simplify right side
    71,325.73x = 4,196,709,152.99
  5. Step 5: Solve for x
    x = 4,196,709,152.99/71,325.73
  6. Step 6: Final answer
    x = 58,838.64

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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.