Home / 78,527.66-117,792.74-19,363.35

Finding the Fourth Proportional to 78,527.66, 117,792.74 and 19,363.35

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Solution

The fourth proportional to 78,527.66, 117,792.74 and 19,363.35 is: 29,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,527.66 : 117,792.74 = 19,363.35 : x
  2. Step 2: Convert to fraction form
    78,527.66/117,792.74 = 19,363.35/x
  3. Step 3: Cross multiply
    78,527.66x = 117,792.74 × 19,363.35
  4. Step 4: Simplify right side
    78,527.66x = 2,280,861,366.30
  5. Step 5: Solve for x
    x = 2,280,861,366.30/78,527.66
  6. Step 6: Final answer
    x = 29,045.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.