Home / 55,928.98-77,182.77-30,779.02

Finding the Fourth Proportional to 55,928.98, 77,182.77 and 30,779.02

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Solution

The fourth proportional to 55,928.98, 77,182.77 and 30,779.02 is: 42,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,928.98 : 77,182.77 = 30,779.02 : x
  2. Step 2: Convert to fraction form
    55,928.98/77,182.77 = 30,779.02/x
  3. Step 3: Cross multiply
    55,928.98x = 77,182.77 × 30,779.02
  4. Step 4: Simplify right side
    55,928.98x = 2,375,610,021.49
  5. Step 5: Solve for x
    x = 2,375,610,021.49/55,928.98
  6. Step 6: Final answer
    x = 42,475.48

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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.