Home / 53,782.90-80,672.52-20,501.76

Finding the Fourth Proportional to 53,782.90, 80,672.52 and 20,501.76

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Solution

The fourth proportional to 53,782.90, 80,672.52 and 20,501.76 is: 30,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,782.90 : 80,672.52 = 20,501.76 : x
  2. Step 2: Convert to fraction form
    53,782.90/80,672.52 = 20,501.76/x
  3. Step 3: Cross multiply
    53,782.90x = 80,672.52 × 20,501.76
  4. Step 4: Simplify right side
    53,782.90x = 1,653,928,643.64
  5. Step 5: Solve for x
    x = 1,653,928,643.64/53,782.90
  6. Step 6: Final answer
    x = 30,751.94

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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.