Home / 51,411.12-70,943.55-28,439.94

Finding the Fourth Proportional to 51,411.12, 70,943.55 and 28,439.94

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Solution

The fourth proportional to 51,411.12, 70,943.55 and 28,439.94 is: 39,245.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,411.12 : 70,943.55 = 28,439.94 : x
  2. Step 2: Convert to fraction form
    51,411.12/70,943.55 = 28,439.94/x
  3. Step 3: Cross multiply
    51,411.12x = 70,943.55 × 28,439.94
  4. Step 4: Simplify right side
    51,411.12x = 2,017,630,305.39
  5. Step 5: Solve for x
    x = 2,017,630,305.39/51,411.12
  6. Step 6: Final answer
    x = 39,245.02

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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.