Home / 53,960.10-80,940.15-14,521.20

Finding the Fourth Proportional to 53,960.10, 80,940.15 and 14,521.20

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Solution

The fourth proportional to 53,960.10, 80,940.15 and 14,521.20 is: 21,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,960.10 : 80,940.15 = 14,521.20 : x
  2. Step 2: Convert to fraction form
    53,960.10/80,940.15 = 14,521.20/x
  3. Step 3: Cross multiply
    53,960.10x = 80,940.15 × 14,521.20
  4. Step 4: Simplify right side
    53,960.10x = 1,175,348,106.18
  5. Step 5: Solve for x
    x = 1,175,348,106.18/53,960.10
  6. Step 6: Final answer
    x = 21,781.80

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1.5x scale

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.