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Finding the Fourth Proportional to 57,341.25, 85,845.02 and 42,615.45

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Solution

The fourth proportional to 57,341.25, 85,845.02 and 42,615.45 is: 63,799.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,341.25 : 85,845.02 = 42,615.45 : x
  2. Step 2: Convert to fraction form
    57,341.25/85,845.02 = 42,615.45/x
  3. Step 3: Cross multiply
    57,341.25x = 85,845.02 × 42,615.45
  4. Step 4: Simplify right side
    57,341.25x = 3,658,323,944.48
  5. Step 5: Solve for x
    x = 3,658,323,944.48/57,341.25
  6. Step 6: Final answer
    x = 63,799.17

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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.