Home / 51,341.56-70,868.10-30,120.28

Finding the Fourth Proportional to 51,341.56, 70,868.10 and 30,120.28

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Solution

The fourth proportional to 51,341.56, 70,868.10 and 30,120.28 is: 41,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,341.56 : 70,868.10 = 30,120.28 : x
  2. Step 2: Convert to fraction form
    51,341.56/70,868.10 = 30,120.28/x
  3. Step 3: Cross multiply
    51,341.56x = 70,868.10 × 30,120.28
  4. Step 4: Simplify right side
    51,341.56x = 2,134,567,015.07
  5. Step 5: Solve for x
    x = 2,134,567,015.07/51,341.56
  6. Step 6: Final answer
    x = 41,575.81

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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.