Home / 83,438.47-115,144.40-45,197.13

Finding the Fourth Proportional to 83,438.47, 115,144.40 and 45,197.13

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Solution

The fourth proportional to 83,438.47, 115,144.40 and 45,197.13 is: 62,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.47 : 115,144.40 = 45,197.13 : x
  2. Step 2: Convert to fraction form
    83,438.47/115,144.40 = 45,197.13/x
  3. Step 3: Cross multiply
    83,438.47x = 115,144.40 × 45,197.13
  4. Step 4: Simplify right side
    83,438.47x = 5,204,196,415.57
  5. Step 5: Solve for x
    x = 5,204,196,415.57/83,438.47
  6. Step 6: Final answer
    x = 62,371.67

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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.