Home / 51,127.50-70,555.95-28,771.98

Finding the Fourth Proportional to 51,127.50, 70,555.95 and 28,771.98

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Solution

The fourth proportional to 51,127.50, 70,555.95 and 28,771.98 is: 39,705.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,127.50 : 70,555.95 = 28,771.98 : x
  2. Step 2: Convert to fraction form
    51,127.50/70,555.95 = 28,771.98/x
  3. Step 3: Cross multiply
    51,127.50x = 70,555.95 × 28,771.98
  4. Step 4: Simplify right side
    51,127.50x = 2,030,034,382.28
  5. Step 5: Solve for x
    x = 2,030,034,382.28/51,127.50
  6. Step 6: Final answer
    x = 39,705.33

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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.