Home / 51,209.52-70,660.54-28,543.56

Finding the Fourth Proportional to 51,209.52, 70,660.54 and 28,543.56

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Solution

The fourth proportional to 51,209.52, 70,660.54 and 28,543.56 is: 39,385.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,209.52 : 70,660.54 = 28,543.56 : x
  2. Step 2: Convert to fraction form
    51,209.52/70,660.54 = 28,543.56/x
  3. Step 3: Cross multiply
    51,209.52x = 70,660.54 × 28,543.56
  4. Step 4: Simplify right side
    51,209.52x = 2,016,903,363.12
  5. Step 5: Solve for x
    x = 2,016,903,363.12/51,209.52
  6. Step 6: Final answer
    x = 39,385.32

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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.