Home / 83,501.34-125,250.95-20,321.57

Finding the Fourth Proportional to 83,501.34, 125,250.95 and 20,321.57

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Solution

The fourth proportional to 83,501.34, 125,250.95 and 20,321.57 is: 30,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,501.34 : 125,250.95 = 20,321.57 : x
  2. Step 2: Convert to fraction form
    83,501.34/125,250.95 = 20,321.57/x
  3. Step 3: Cross multiply
    83,501.34x = 125,250.95 × 20,321.57
  4. Step 4: Simplify right side
    83,501.34x = 2,545,295,947.99
  5. Step 5: Solve for x
    x = 2,545,295,947.99/83,501.34
  6. Step 6: Final answer
    x = 30,482.10

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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.