Home / 84,848.78-127,079.40-40,506.68

Finding the Fourth Proportional to 84,848.78, 127,079.40 and 40,506.68

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Solution

The fourth proportional to 84,848.78, 127,079.40 and 40,506.68 is: 60,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,848.78 : 127,079.40 = 40,506.68 : x
  2. Step 2: Convert to fraction form
    84,848.78/127,079.40 = 40,506.68/x
  3. Step 3: Cross multiply
    84,848.78x = 127,079.40 × 40,506.68
  4. Step 4: Simplify right side
    84,848.78x = 5,147,564,590.39
  5. Step 5: Solve for x
    x = 5,147,564,590.39/84,848.78
  6. Step 6: Final answer
    x = 60,667.51

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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.