Home / 85,947.74-128,837.78-36,042.84

Finding the Fourth Proportional to 85,947.74, 128,837.78 and 36,042.84

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Solution

The fourth proportional to 85,947.74, 128,837.78 and 36,042.84 is: 54,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,947.74 : 128,837.78 = 36,042.84 : x
  2. Step 2: Convert to fraction form
    85,947.74/128,837.78 = 36,042.84/x
  3. Step 3: Cross multiply
    85,947.74x = 128,837.78 × 36,042.84
  4. Step 4: Simplify right side
    85,947.74x = 4,643,679,490.50
  5. Step 5: Solve for x
    x = 4,643,679,490.50/85,947.74
  6. Step 6: Final answer
    x = 54,029.11

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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.