Home / 79,230.18-109,340.64-45,244.20

Finding the Fourth Proportional to 79,230.18, 109,340.64 and 45,244.20

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Solution

The fourth proportional to 79,230.18, 109,340.64 and 45,244.20 is: 62,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,230.18 : 109,340.64 = 45,244.20 : x
  2. Step 2: Convert to fraction form
    79,230.18/109,340.64 = 45,244.20/x
  3. Step 3: Cross multiply
    79,230.18x = 109,340.64 × 45,244.20
  4. Step 4: Simplify right side
    79,230.18x = 4,947,029,784.29
  5. Step 5: Solve for x
    x = 4,947,029,784.29/79,230.18
  6. Step 6: Final answer
    x = 62,438.70

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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.