Home / 74,960.56-103,478.88-57,056.32

Finding the Fourth Proportional to 74,960.56, 103,478.88 and 57,056.32

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Solution

The fourth proportional to 74,960.56, 103,478.88 and 57,056.32 is: 78,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,960.56 : 103,478.88 = 57,056.32 : x
  2. Step 2: Convert to fraction form
    74,960.56/103,478.88 = 57,056.32/x
  3. Step 3: Cross multiply
    74,960.56x = 103,478.88 × 57,056.32
  4. Step 4: Simplify right side
    74,960.56x = 5,904,124,090.52
  5. Step 5: Solve for x
    x = 5,904,124,090.52/74,960.56
  6. Step 6: Final answer
    x = 78,763.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.