Home / 83,384.91-115,071.20-45,144.45

Finding the Fourth Proportional to 83,384.91, 115,071.20 and 45,144.45

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Solution

The fourth proportional to 83,384.91, 115,071.20 and 45,144.45 is: 62,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.91 : 115,071.20 = 45,144.45 : x
  2. Step 2: Convert to fraction form
    83,384.91/115,071.20 = 45,144.45/x
  3. Step 3: Cross multiply
    83,384.91x = 115,071.20 × 45,144.45
  4. Step 4: Simplify right side
    83,384.91x = 5,194,825,978.41
  5. Step 5: Solve for x
    x = 5,194,825,978.41/83,384.91
  6. Step 6: Final answer
    x = 62,299.35

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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.