Home / 81,348.26-112,301.37-51,150.20

Finding the Fourth Proportional to 81,348.26, 112,301.37 and 51,150.20

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Solution

The fourth proportional to 81,348.26, 112,301.37 and 51,150.20 is: 70,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,348.26 : 112,301.37 = 51,150.20 : x
  2. Step 2: Convert to fraction form
    81,348.26/112,301.37 = 51,150.20/x
  3. Step 3: Cross multiply
    81,348.26x = 112,301.37 × 51,150.20
  4. Step 4: Simplify right side
    81,348.26x = 5,744,237,535.77
  5. Step 5: Solve for x
    x = 5,744,237,535.77/81,348.26
  6. Step 6: Final answer
    x = 70,612.91

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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.