Home / 51,140.45-70,573.25-28,478.94

Finding the Fourth Proportional to 51,140.45, 70,573.25 and 28,478.94

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Solution

The fourth proportional to 51,140.45, 70,573.25 and 28,478.94 is: 39,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,140.45 : 70,573.25 = 28,478.94 : x
  2. Step 2: Convert to fraction form
    51,140.45/70,573.25 = 28,478.94/x
  3. Step 3: Cross multiply
    51,140.45x = 70,573.25 × 28,478.94
  4. Step 4: Simplify right side
    51,140.45x = 2,009,851,209.96
  5. Step 5: Solve for x
    x = 2,009,851,209.96/51,140.45
  6. Step 6: Final answer
    x = 39,300.62

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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.