Home / 84,631.92-127,030.50-40,289.28

Finding the Fourth Proportional to 84,631.92, 127,030.50 and 40,289.28

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Solution

The fourth proportional to 84,631.92, 127,030.50 and 40,289.28 is: 60,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,631.92 : 127,030.50 = 40,289.28 : x
  2. Step 2: Convert to fraction form
    84,631.92/127,030.50 = 40,289.28/x
  3. Step 3: Cross multiply
    84,631.92x = 127,030.50 × 40,289.28
  4. Step 4: Simplify right side
    84,631.92x = 5,117,967,383.04
  5. Step 5: Solve for x
    x = 5,117,967,383.04/84,631.92
  6. Step 6: Final answer
    x = 60,473.25

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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.