Home / 51,166.50-70,611.90-28,505.51

Finding the Fourth Proportional to 51,166.50, 70,611.90 and 28,505.51

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Solution

The fourth proportional to 51,166.50, 70,611.90 and 28,505.51 is: 39,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,166.50 : 70,611.90 = 28,505.51 : x
  2. Step 2: Convert to fraction form
    51,166.50/70,611.90 = 28,505.51/x
  3. Step 3: Cross multiply
    51,166.50x = 70,611.90 × 28,505.51
  4. Step 4: Simplify right side
    51,166.50x = 2,012,827,868.51
  5. Step 5: Solve for x
    x = 2,012,827,868.51/51,166.50
  6. Step 6: Final answer
    x = 39,338.78

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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.