Home / 78,323.17-108,083.08-42,512.42

Finding the Fourth Proportional to 78,323.17, 108,083.08 and 42,512.42

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Solution

The fourth proportional to 78,323.17, 108,083.08 and 42,512.42 is: 58,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,323.17 : 108,083.08 = 42,512.42 : x
  2. Step 2: Convert to fraction form
    78,323.17/108,083.08 = 42,512.42/x
  3. Step 3: Cross multiply
    78,323.17x = 108,083.08 × 42,512.42
  4. Step 4: Simplify right side
    78,323.17x = 4,594,872,538.88
  5. Step 5: Solve for x
    x = 4,594,872,538.88/78,323.17
  6. Step 6: Final answer
    x = 58,665.56

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1.5x scale

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.