Home / 76,842.76-106,029.38-42,848.54

Finding the Fourth Proportional to 76,842.76, 106,029.38 and 42,848.54

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Solution

The fourth proportional to 76,842.76, 106,029.38 and 42,848.54 is: 59,123.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,842.76 : 106,029.38 = 42,848.54 : x
  2. Step 2: Convert to fraction form
    76,842.76/106,029.38 = 42,848.54/x
  3. Step 3: Cross multiply
    76,842.76x = 106,029.38 × 42,848.54
  4. Step 4: Simplify right side
    76,842.76x = 4,543,204,130.11
  5. Step 5: Solve for x
    x = 4,543,204,130.11/76,842.76
  6. Step 6: Final answer
    x = 59,123.39

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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.