Home / 79,438.19-109,624.27-43,139.32

Finding the Fourth Proportional to 79,438.19, 109,624.27 and 43,139.32

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Solution

The fourth proportional to 79,438.19, 109,624.27 and 43,139.32 is: 59,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438.19 : 109,624.27 = 43,139.32 : x
  2. Step 2: Convert to fraction form
    79,438.19/109,624.27 = 43,139.32/x
  3. Step 3: Cross multiply
    79,438.19x = 109,624.27 × 43,139.32
  4. Step 4: Simplify right side
    79,438.19x = 4,729,116,463.30
  5. Step 5: Solve for x
    x = 4,729,116,463.30/79,438.19
  6. Step 6: Final answer
    x = 59,532.03

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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.