Home / 85,582.70-128,437.06-40,604.14

Finding the Fourth Proportional to 85,582.70, 128,437.06 and 40,604.14

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Solution

The fourth proportional to 85,582.70, 128,437.06 and 40,604.14 is: 60,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,582.70 : 128,437.06 = 40,604.14 : x
  2. Step 2: Convert to fraction form
    85,582.70/128,437.06 = 40,604.14/x
  3. Step 3: Cross multiply
    85,582.70x = 128,437.06 × 40,604.14
  4. Step 4: Simplify right side
    85,582.70x = 5,215,076,500.60
  5. Step 5: Solve for x
    x = 5,215,076,500.60/85,582.70
  6. Step 6: Final answer
    x = 60,936.11

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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.