Home / 51,109.12-70,528.80-28,447.36

Finding the Fourth Proportional to 51,109.12, 70,528.80 and 28,447.36

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Solution

The fourth proportional to 51,109.12, 70,528.80 and 28,447.36 is: 39,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.12 : 70,528.80 = 28,447.36 : x
  2. Step 2: Convert to fraction form
    51,109.12/70,528.80 = 28,447.36/x
  3. Step 3: Cross multiply
    51,109.12x = 70,528.80 × 28,447.36
  4. Step 4: Simplify right side
    51,109.12x = 2,006,358,163.97
  5. Step 5: Solve for x
    x = 2,006,358,163.97/51,109.12
  6. Step 6: Final answer
    x = 39,256.36

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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.