Home / 51,099.39-70,520.47-28,438.31

Finding the Fourth Proportional to 51,099.39, 70,520.47 and 28,438.31

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Solution

The fourth proportional to 51,099.39, 70,520.47 and 28,438.31 is: 39,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,099.39 : 70,520.47 = 28,438.31 : x
  2. Step 2: Convert to fraction form
    51,099.39/70,520.47 = 28,438.31/x
  3. Step 3: Cross multiply
    51,099.39x = 70,520.47 × 28,438.31
  4. Step 4: Simplify right side
    51,099.39x = 2,005,482,987.21
  5. Step 5: Solve for x
    x = 2,005,482,987.21/51,099.39
  6. Step 6: Final answer
    x = 39,246.71

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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.