Home / 81,023.10-121,491.45-34,223.10

Finding the Fourth Proportional to 81,023.10, 121,491.45 and 34,223.10

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Solution

The fourth proportional to 81,023.10, 121,491.45 and 34,223.10 is: 51,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023.10 : 121,491.45 = 34,223.10 : x
  2. Step 2: Convert to fraction form
    81,023.10/121,491.45 = 34,223.10/x
  3. Step 3: Cross multiply
    81,023.10x = 121,491.45 × 34,223.10
  4. Step 4: Simplify right side
    81,023.10x = 4,157,814,042.50
  5. Step 5: Solve for x
    x = 4,157,814,042.50/81,023.10
  6. Step 6: Final answer
    x = 51,316.40

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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.