Home / 83,501.45-125,252.43-20,321.59

Finding the Fourth Proportional to 83,501.45, 125,252.43 and 20,321.59

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Solution

The fourth proportional to 83,501.45, 125,252.43 and 20,321.59 is: 30,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,501.45 : 125,252.43 = 20,321.59 : x
  2. Step 2: Convert to fraction form
    83,501.45/125,252.43 = 20,321.59/x
  3. Step 3: Cross multiply
    83,501.45x = 125,252.43 × 20,321.59
  4. Step 4: Simplify right side
    83,501.45x = 2,545,328,528.96
  5. Step 5: Solve for x
    x = 2,545,328,528.96/83,501.45
  6. Step 6: Final answer
    x = 30,482.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.