Home / 79,258.28-109,384.25-45,271.85

Finding the Fourth Proportional to 79,258.28, 109,384.25 and 45,271.85

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Solution

The fourth proportional to 79,258.28, 109,384.25 and 45,271.85 is: 62,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,258.28 : 109,384.25 = 45,271.85 : x
  2. Step 2: Convert to fraction form
    79,258.28/109,384.25 = 45,271.85/x
  3. Step 3: Cross multiply
    79,258.28x = 109,384.25 × 45,271.85
  4. Step 4: Simplify right side
    79,258.28x = 4,952,026,585.08
  5. Step 5: Solve for x
    x = 4,952,026,585.08/79,258.28
  6. Step 6: Final answer
    x = 62,479.62

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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.