Home / 74,955.40-112,433.10-55,272.40

Finding the Fourth Proportional to 74,955.40, 112,433.10 and 55,272.40

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Solution

The fourth proportional to 74,955.40, 112,433.10 and 55,272.40 is: 82,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,955.40 : 112,433.10 = 55,272.40 : x
  2. Step 2: Convert to fraction form
    74,955.40/112,433.10 = 55,272.40/x
  3. Step 3: Cross multiply
    74,955.40x = 112,433.10 × 55,272.40
  4. Step 4: Simplify right side
    74,955.40x = 6,214,447,276.44
  5. Step 5: Solve for x
    x = 6,214,447,276.44/74,955.40
  6. Step 6: Final answer
    x = 82,908.60

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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.