Home / 100,059.54-138,085.43-57,038.24

Finding the Fourth Proportional to 100,059.54, 138,085.43 and 57,038.24

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Solution

The fourth proportional to 100,059.54, 138,085.43 and 57,038.24 is: 78,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,059.54 : 138,085.43 = 57,038.24 : x
  2. Step 2: Convert to fraction form
    100,059.54/138,085.43 = 57,038.24/x
  3. Step 3: Cross multiply
    100,059.54x = 138,085.43 × 57,038.24
  4. Step 4: Simplify right side
    100,059.54x = 7,876,149,956.87
  5. Step 5: Solve for x
    x = 7,876,149,956.87/100,059.54
  6. Step 6: Final answer
    x = 78,714.64

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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.