Home / 51,663.88-77,534.34-20,078.92

Finding the Fourth Proportional to 51,663.88, 77,534.34 and 20,078.92

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Solution

The fourth proportional to 51,663.88, 77,534.34 and 20,078.92 is: 30,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,663.88 : 77,534.34 = 20,078.92 : x
  2. Step 2: Convert to fraction form
    51,663.88/77,534.34 = 20,078.92/x
  3. Step 3: Cross multiply
    51,663.88x = 77,534.34 × 20,078.92
  4. Step 4: Simplify right side
    51,663.88x = 1,556,805,810.11
  5. Step 5: Solve for x
    x = 1,556,805,810.11/51,663.88
  6. Step 6: Final answer
    x = 30,133.35

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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.