Home / 53,856.90-80,785.35-30,528.90

Finding the Fourth Proportional to 53,856.90, 80,785.35 and 30,528.90

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Solution

The fourth proportional to 53,856.90, 80,785.35 and 30,528.90 is: 45,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,856.90 : 80,785.35 = 30,528.90 : x
  2. Step 2: Convert to fraction form
    53,856.90/80,785.35 = 30,528.90/x
  3. Step 3: Cross multiply
    53,856.90x = 80,785.35 × 30,528.90
  4. Step 4: Simplify right side
    53,856.90x = 2,466,287,871.62
  5. Step 5: Solve for x
    x = 2,466,287,871.62/53,856.90
  6. Step 6: Final answer
    x = 45,793.35

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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.