Home / 51,117.70-70,540.86-28,455.52

Finding the Fourth Proportional to 51,117.70, 70,540.86 and 28,455.52

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Solution

The fourth proportional to 51,117.70, 70,540.86 and 28,455.52 is: 39,267.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,117.70 : 70,540.86 = 28,455.52 : x
  2. Step 2: Convert to fraction form
    51,117.70/70,540.86 = 28,455.52/x
  3. Step 3: Cross multiply
    51,117.70x = 70,540.86 × 28,455.52
  4. Step 4: Simplify right side
    51,117.70x = 2,007,276,852.55
  5. Step 5: Solve for x
    x = 2,007,276,852.55/51,117.70
  6. Step 6: Final answer
    x = 39,267.75

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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.