Home / 276,848.52-415,281.75-87,310.72

Finding the Fourth Proportional to 276,848.52, 415,281.75 and 87,310.72

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Solution

The fourth proportional to 276,848.52, 415,281.75 and 87,310.72 is: 130,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,848.52 : 415,281.75 = 87,310.72 : x
  2. Step 2: Convert to fraction form
    276,848.52/415,281.75 = 87,310.72/x
  3. Step 3: Cross multiply
    276,848.52x = 415,281.75 × 87,310.72
  4. Step 4: Simplify right side
    276,848.52x = 36,258,548,595.36
  5. Step 5: Solve for x
    x = 36,258,548,595.36/276,848.52
  6. Step 6: Final answer
    x = 130,968.91

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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.