Home / 51,191.40-70,643.30-28,835.56

Finding the Fourth Proportional to 51,191.40, 70,643.30 and 28,835.56

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Solution

The fourth proportional to 51,191.40, 70,643.30 and 28,835.56 is: 39,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,191.40 : 70,643.30 = 28,835.56 : x
  2. Step 2: Convert to fraction form
    51,191.40/70,643.30 = 28,835.56/x
  3. Step 3: Cross multiply
    51,191.40x = 70,643.30 × 28,835.56
  4. Step 4: Simplify right side
    51,191.40x = 2,037,039,115.75
  5. Step 5: Solve for x
    x = 2,037,039,115.75/51,191.40
  6. Step 6: Final answer
    x = 39,792.60

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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.