Home / 56,162.41-77,372.40-39,135.75

Finding the Fourth Proportional to 56,162.41, 77,372.40 and 39,135.75

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Solution

The fourth proportional to 56,162.41, 77,372.40 and 39,135.75 is: 53,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,162.41 : 77,372.40 = 39,135.75 : x
  2. Step 2: Convert to fraction form
    56,162.41/77,372.40 = 39,135.75/x
  3. Step 3: Cross multiply
    56,162.41x = 77,372.40 × 39,135.75
  4. Step 4: Simplify right side
    56,162.41x = 3,028,026,903.30
  5. Step 5: Solve for x
    x = 3,028,026,903.30/56,162.41
  6. Step 6: Final answer
    x = 53,915.55

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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.