Home / 72,686.78-100,293.05-42,466.26

Finding the Fourth Proportional to 72,686.78, 100,293.05 and 42,466.26

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Solution

The fourth proportional to 72,686.78, 100,293.05 and 42,466.26 is: 58,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,686.78 : 100,293.05 = 42,466.26 : x
  2. Step 2: Convert to fraction form
    72,686.78/100,293.05 = 42,466.26/x
  3. Step 3: Cross multiply
    72,686.78x = 100,293.05 × 42,466.26
  4. Step 4: Simplify right side
    72,686.78x = 4,259,070,631.33
  5. Step 5: Solve for x
    x = 4,259,070,631.33/72,686.78
  6. Step 6: Final answer
    x = 58,594.85

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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.