Home / 51,374.28-77,060.40-19,791.12

Finding the Fourth Proportional to 51,374.28, 77,060.40 and 19,791.12

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Solution

The fourth proportional to 51,374.28, 77,060.40 and 19,791.12 is: 29,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,374.28 : 77,060.40 = 19,791.12 : x
  2. Step 2: Convert to fraction form
    51,374.28/77,060.40 = 19,791.12/x
  3. Step 3: Cross multiply
    51,374.28x = 77,060.40 × 19,791.12
  4. Step 4: Simplify right side
    51,374.28x = 1,525,111,623.65
  5. Step 5: Solve for x
    x = 1,525,111,623.65/51,374.28
  6. Step 6: Final answer
    x = 29,686.29

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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.