Home / 92,057.04-138,260.61-57,240

Finding the Fourth Proportional to 92,057.04, 138,260.61 and 57,240

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Solution

The fourth proportional to 92,057.04, 138,260.61 and 57,240 is: 85,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,057.04 : 138,260.61 = 57,240 : x
  2. Step 2: Convert to fraction form
    92,057.04/138,260.61 = 57,240/x
  3. Step 3: Cross multiply
    92,057.04x = 138,260.61 × 57,240
  4. Step 4: Simplify right side
    92,057.04x = 7,914,037,316.40
  5. Step 5: Solve for x
    x = 7,914,037,316.40/92,057.04
  6. Step 6: Final answer
    x = 85,968.84

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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.