Home / 51,387.06-77,033.84-19,776.96

Finding the Fourth Proportional to 51,387.06, 77,033.84 and 19,776.96

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Solution

The fourth proportional to 51,387.06, 77,033.84 and 19,776.96 is: 29,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.06 : 77,033.84 = 19,776.96 : x
  2. Step 2: Convert to fraction form
    51,387.06/77,033.84 = 19,776.96/x
  3. Step 3: Cross multiply
    51,387.06x = 77,033.84 × 19,776.96
  4. Step 4: Simplify right side
    51,387.06x = 1,523,495,172.33
  5. Step 5: Solve for x
    x = 1,523,495,172.33/51,387.06
  6. Step 6: Final answer
    x = 29,647.45

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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.