Home / 55,999.39-77,279.13-30,848.89

Finding the Fourth Proportional to 55,999.39, 77,279.13 and 30,848.89

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Solution

The fourth proportional to 55,999.39, 77,279.13 and 30,848.89 is: 42,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,999.39 : 77,279.13 = 30,848.89 : x
  2. Step 2: Convert to fraction form
    55,999.39/77,279.13 = 30,848.89/x
  3. Step 3: Cross multiply
    55,999.39x = 77,279.13 × 30,848.89
  4. Step 4: Simplify right side
    55,999.39x = 2,383,975,380.67
  5. Step 5: Solve for x
    x = 2,383,975,380.67/55,999.39
  6. Step 6: Final answer
    x = 42,571.45

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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.