Home / 53,659.88-74,054.08-30,999.84

Finding the Fourth Proportional to 53,659.88, 74,054.08 and 30,999.84

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Solution

The fourth proportional to 53,659.88, 74,054.08 and 30,999.84 is: 42,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,659.88 : 74,054.08 = 30,999.84 : x
  2. Step 2: Convert to fraction form
    53,659.88/74,054.08 = 30,999.84/x
  3. Step 3: Cross multiply
    53,659.88x = 74,054.08 × 30,999.84
  4. Step 4: Simplify right side
    53,659.88x = 2,295,664,631.35
  5. Step 5: Solve for x
    x = 2,295,664,631.35/53,659.88
  6. Step 6: Final answer
    x = 42,781.77

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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.