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Finding the Fourth Proportional to 53,510.20, 80,111.70 and 51,974.20

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Solution

The fourth proportional to 53,510.20, 80,111.70 and 51,974.20 is: 77,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,510.20 : 80,111.70 = 51,974.20 : x
  2. Step 2: Convert to fraction form
    53,510.20/80,111.70 = 51,974.20/x
  3. Step 3: Cross multiply
    53,510.20x = 80,111.70 × 51,974.20
  4. Step 4: Simplify right side
    53,510.20x = 4,163,741,518.14
  5. Step 5: Solve for x
    x = 4,163,741,518.14/53,510.20
  6. Step 6: Final answer
    x = 77,812.11

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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.