Home / 79,905.40-119,858.18-27,315.32

Finding the Fourth Proportional to 79,905.40, 119,858.18 and 27,315.32

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Solution

The fourth proportional to 79,905.40, 119,858.18 and 27,315.32 is: 40,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,905.40 : 119,858.18 = 27,315.32 : x
  2. Step 2: Convert to fraction form
    79,905.40/119,858.18 = 27,315.32/x
  3. Step 3: Cross multiply
    79,905.40x = 119,858.18 × 27,315.32
  4. Step 4: Simplify right side
    79,905.40x = 3,273,964,541.32
  5. Step 5: Solve for x
    x = 3,273,964,541.32/79,905.40
  6. Step 6: Final answer
    x = 40,973.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.