Home / 76,529.81-114,803.53-20,370.69

Finding the Fourth Proportional to 76,529.81, 114,803.53 and 20,370.69

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Solution

The fourth proportional to 76,529.81, 114,803.53 and 20,370.69 is: 30,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,529.81 : 114,803.53 = 20,370.69 : x
  2. Step 2: Convert to fraction form
    76,529.81/114,803.53 = 20,370.69/x
  3. Step 3: Cross multiply
    76,529.81x = 114,803.53 × 20,370.69
  4. Step 4: Simplify right side
    76,529.81x = 2,338,627,069.61
  5. Step 5: Solve for x
    x = 2,338,627,069.61/76,529.81
  6. Step 6: Final answer
    x = 30,558.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.