Home / 51,246.75-70,720.53-28,890.75

Finding the Fourth Proportional to 51,246.75, 70,720.53 and 28,890.75

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Solution

The fourth proportional to 51,246.75, 70,720.53 and 28,890.75 is: 39,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,246.75 : 70,720.53 = 28,890.75 : x
  2. Step 2: Convert to fraction form
    51,246.75/70,720.53 = 28,890.75/x
  3. Step 3: Cross multiply
    51,246.75x = 70,720.53 × 28,890.75
  4. Step 4: Simplify right side
    51,246.75x = 2,043,169,152.10
  5. Step 5: Solve for x
    x = 2,043,169,152.10/51,246.75
  6. Step 6: Final answer
    x = 39,869.24

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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.