Home / 51,532.80-77,254.20-19,964.40

Finding the Fourth Proportional to 51,532.80, 77,254.20 and 19,964.40

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Solution

The fourth proportional to 51,532.80, 77,254.20 and 19,964.40 is: 29,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,532.80 : 77,254.20 = 19,964.40 : x
  2. Step 2: Convert to fraction form
    51,532.80/77,254.20 = 19,964.40/x
  3. Step 3: Cross multiply
    51,532.80x = 77,254.20 × 19,964.40
  4. Step 4: Simplify right side
    51,532.80x = 1,542,333,750.48
  5. Step 5: Solve for x
    x = 1,542,333,750.48/51,532.80
  6. Step 6: Final answer
    x = 29,929.17

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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.