Home / 51,041.34-70,440.23-28,380.51

Finding the Fourth Proportional to 51,041.34, 70,440.23 and 28,380.51

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Solution

The fourth proportional to 51,041.34, 70,440.23 and 28,380.51 is: 39,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.34 : 70,440.23 = 28,380.51 : x
  2. Step 2: Convert to fraction form
    51,041.34/70,440.23 = 28,380.51/x
  3. Step 3: Cross multiply
    51,041.34x = 70,440.23 × 28,380.51
  4. Step 4: Simplify right side
    51,041.34x = 1,999,129,722.87
  5. Step 5: Solve for x
    x = 1,999,129,722.87/51,041.34
  6. Step 6: Final answer
    x = 39,166.87

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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.