Home / 51,236.80-70,707.16-28,577.28

Finding the Fourth Proportional to 51,236.80, 70,707.16 and 28,577.28

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Solution

The fourth proportional to 51,236.80, 70,707.16 and 28,577.28 is: 39,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,236.80 : 70,707.16 = 28,577.28 : x
  2. Step 2: Convert to fraction form
    51,236.80/70,707.16 = 28,577.28/x
  3. Step 3: Cross multiply
    51,236.80x = 70,707.16 × 28,577.28
  4. Step 4: Simplify right side
    51,236.80x = 2,020,618,309.32
  5. Step 5: Solve for x
    x = 2,020,618,309.32/51,236.80
  6. Step 6: Final answer
    x = 39,436.86

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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.