Home / 74,778.93-112,146.39-28,020.87

Finding the Fourth Proportional to 74,778.93, 112,146.39 and 28,020.87

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Solution

The fourth proportional to 74,778.93, 112,146.39 and 28,020.87 is: 42,023.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.93 : 112,146.39 = 28,020.87 : x
  2. Step 2: Convert to fraction form
    74,778.93/112,146.39 = 28,020.87/x
  3. Step 3: Cross multiply
    74,778.93x = 112,146.39 × 28,020.87
  4. Step 4: Simplify right side
    74,778.93x = 3,142,439,415.16
  5. Step 5: Solve for x
    x = 3,142,439,415.16/74,778.93
  6. Step 6: Final answer
    x = 42,023.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.