Home / 51,086.36-70,498.50-28,730.36

Finding the Fourth Proportional to 51,086.36, 70,498.50 and 28,730.36

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Solution

The fourth proportional to 51,086.36, 70,498.50 and 28,730.36 is: 39,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,086.36 : 70,498.50 = 28,730.36 : x
  2. Step 2: Convert to fraction form
    51,086.36/70,498.50 = 28,730.36/x
  3. Step 3: Cross multiply
    51,086.36x = 70,498.50 × 28,730.36
  4. Step 4: Simplify right side
    51,086.36x = 2,025,447,284.46
  5. Step 5: Solve for x
    x = 2,025,447,284.46/51,086.36
  6. Step 6: Final answer
    x = 39,647.52

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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.