Home / 55,431.17-76,494.89-30,280.85

Finding the Fourth Proportional to 55,431.17, 76,494.89 and 30,280.85

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Solution

The fourth proportional to 55,431.17, 76,494.89 and 30,280.85 is: 41,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,431.17 : 76,494.89 = 30,280.85 : x
  2. Step 2: Convert to fraction form
    55,431.17/76,494.89 = 30,280.85/x
  3. Step 3: Cross multiply
    55,431.17x = 76,494.89 × 30,280.85
  4. Step 4: Simplify right side
    55,431.17x = 2,316,330,138.45
  5. Step 5: Solve for x
    x = 2,316,330,138.45/55,431.17
  6. Step 6: Final answer
    x = 41,787.50

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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.