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Finding the Fourth Proportional to 101,750.28, 140,414.94 and 57,038.28

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Solution

The fourth proportional to 101,750.28, 140,414.94 and 57,038.28 is: 78,712.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,750.28 : 140,414.94 = 57,038.28 : x
  2. Step 2: Convert to fraction form
    101,750.28/140,414.94 = 57,038.28/x
  3. Step 3: Cross multiply
    101,750.28x = 140,414.94 × 57,038.28
  4. Step 4: Simplify right side
    101,750.28x = 8,009,026,663.90
  5. Step 5: Solve for x
    x = 8,009,026,663.90/101,750.28
  6. Step 6: Final answer
    x = 78,712.58

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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.