Home / 55,999.40-77,279.18-30,848.90

Finding the Fourth Proportional to 55,999.40, 77,279.18 and 30,848.90

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Solution

The fourth proportional to 55,999.40, 77,279.18 and 30,848.90 is: 42,571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,999.40 : 77,279.18 = 30,848.90 : x
  2. Step 2: Convert to fraction form
    55,999.40/77,279.18 = 30,848.90/x
  3. Step 3: Cross multiply
    55,999.40x = 77,279.18 × 30,848.90
  4. Step 4: Simplify right side
    55,999.40x = 2,383,977,155.26
  5. Step 5: Solve for x
    x = 2,383,977,155.26/55,999.40
  6. Step 6: Final answer
    x = 42,571.48

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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.