Home / 51,816.66-77,666.67-20,615.46

Finding the Fourth Proportional to 51,816.66, 77,666.67 and 20,615.46

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Solution

The fourth proportional to 51,816.66, 77,666.67 and 20,615.46 is: 30,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,816.66 : 77,666.67 = 20,615.46 : x
  2. Step 2: Convert to fraction form
    51,816.66/77,666.67 = 20,615.46/x
  3. Step 3: Cross multiply
    51,816.66x = 77,666.67 × 20,615.46
  4. Step 4: Simplify right side
    51,816.66x = 1,601,134,128.72
  5. Step 5: Solve for x
    x = 1,601,134,128.72/51,816.66
  6. Step 6: Final answer
    x = 30,899.99

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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.