Home / 51,419.98-70,959.37-28,758.88

Finding the Fourth Proportional to 51,419.98, 70,959.37 and 28,758.88

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Solution

The fourth proportional to 51,419.98, 70,959.37 and 28,758.88 is: 39,687.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,419.98 : 70,959.37 = 28,758.88 : x
  2. Step 2: Convert to fraction form
    51,419.98/70,959.37 = 28,758.88/x
  3. Step 3: Cross multiply
    51,419.98x = 70,959.37 × 28,758.88
  4. Step 4: Simplify right side
    51,419.98x = 2,040,712,006.71
  5. Step 5: Solve for x
    x = 2,040,712,006.71/51,419.98
  6. Step 6: Final answer
    x = 39,687.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.