Home / 55,436.40-76,500.60-30,285.90

Finding the Fourth Proportional to 55,436.40, 76,500.60 and 30,285.90

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Solution

The fourth proportional to 55,436.40, 76,500.60 and 30,285.90 is: 41,793.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,436.40 : 76,500.60 = 30,285.90 : x
  2. Step 2: Convert to fraction form
    55,436.40/76,500.60 = 30,285.90/x
  3. Step 3: Cross multiply
    55,436.40x = 76,500.60 × 30,285.90
  4. Step 4: Simplify right side
    55,436.40x = 2,316,889,521.54
  5. Step 5: Solve for x
    x = 2,316,889,521.54/55,436.40
  6. Step 6: Final answer
    x = 41,793.65

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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.