Home / 75,680.28-104,440.86-42,148.44

Finding the Fourth Proportional to 75,680.28, 104,440.86 and 42,148.44

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Solution

The fourth proportional to 75,680.28, 104,440.86 and 42,148.44 is: 58,166.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,680.28 : 104,440.86 = 42,148.44 : x
  2. Step 2: Convert to fraction form
    75,680.28/104,440.86 = 42,148.44/x
  3. Step 3: Cross multiply
    75,680.28x = 104,440.86 × 42,148.44
  4. Step 4: Simplify right side
    75,680.28x = 4,402,019,321.26
  5. Step 5: Solve for x
    x = 4,402,019,321.26/75,680.28
  6. Step 6: Final answer
    x = 58,166.00

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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.