Home / 55,930.26-77,185.36-30,779.76

Finding the Fourth Proportional to 55,930.26, 77,185.36 and 30,779.76

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Solution

The fourth proportional to 55,930.26, 77,185.36 and 30,779.76 is: 42,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.26 : 77,185.36 = 30,779.76 : x
  2. Step 2: Convert to fraction form
    55,930.26/77,185.36 = 30,779.76/x
  3. Step 3: Cross multiply
    55,930.26x = 77,185.36 × 30,779.76
  4. Step 4: Simplify right side
    55,930.26x = 2,375,746,856.31
  5. Step 5: Solve for x
    x = 2,375,746,856.31/55,930.26
  6. Step 6: Final answer
    x = 42,476.95

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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.