Home / 78,527.41-117,792.36-19,363.10

Finding the Fourth Proportional to 78,527.41, 117,792.36 and 19,363.10

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Solution

The fourth proportional to 78,527.41, 117,792.36 and 19,363.10 is: 29,044.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,527.41 : 117,792.36 = 19,363.10 : x
  2. Step 2: Convert to fraction form
    78,527.41/117,792.36 = 19,363.10/x
  3. Step 3: Cross multiply
    78,527.41x = 117,792.36 × 19,363.10
  4. Step 4: Simplify right side
    78,527.41x = 2,280,824,656.95
  5. Step 5: Solve for x
    x = 2,280,824,656.95/78,527.41
  6. Step 6: Final answer
    x = 29,044.95

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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.