Home / 55,127.20-82,690.80-31,734.40

Finding the Fourth Proportional to 55,127.20, 82,690.80 and 31,734.40

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Solution

The fourth proportional to 55,127.20, 82,690.80 and 31,734.40 is: 47,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,127.20 : 82,690.80 = 31,734.40 : x
  2. Step 2: Convert to fraction form
    55,127.20/82,690.80 = 31,734.40/x
  3. Step 3: Cross multiply
    55,127.20x = 82,690.80 × 31,734.40
  4. Step 4: Simplify right side
    55,127.20x = 2,624,142,923.52
  5. Step 5: Solve for x
    x = 2,624,142,923.52/55,127.20
  6. Step 6: Final answer
    x = 47,601.60

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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.