Home / 53,886.12-74,365.15-30,012.80

Finding the Fourth Proportional to 53,886.12, 74,365.15 and 30,012.80

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Solution

The fourth proportional to 53,886.12, 74,365.15 and 30,012.80 is: 41,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,886.12 : 74,365.15 = 30,012.80 : x
  2. Step 2: Convert to fraction form
    53,886.12/74,365.15 = 30,012.80/x
  3. Step 3: Cross multiply
    53,886.12x = 74,365.15 × 30,012.80
  4. Step 4: Simplify right side
    53,886.12x = 2,231,906,373.92
  5. Step 5: Solve for x
    x = 2,231,906,373.92/53,886.12
  6. Step 6: Final answer
    x = 41,418.95

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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.