Home / 51,319.40-76,963.10-20,164.20

Finding the Fourth Proportional to 51,319.40, 76,963.10 and 20,164.20

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Solution

The fourth proportional to 51,319.40, 76,963.10 and 20,164.20 is: 30,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,319.40 : 76,963.10 = 20,164.20 : x
  2. Step 2: Convert to fraction form
    51,319.40/76,963.10 = 20,164.20/x
  3. Step 3: Cross multiply
    51,319.40x = 76,963.10 × 20,164.20
  4. Step 4: Simplify right side
    51,319.40x = 1,551,899,341.02
  5. Step 5: Solve for x
    x = 1,551,899,341.02/51,319.40
  6. Step 6: Final answer
    x = 30,240.01

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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.