Home / 79,623.05-119,434.58-20,458.72

Finding the Fourth Proportional to 79,623.05, 119,434.58 and 20,458.72

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Solution

The fourth proportional to 79,623.05, 119,434.58 and 20,458.72 is: 30,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.05 : 119,434.58 = 20,458.72 : x
  2. Step 2: Convert to fraction form
    79,623.05/119,434.58 = 20,458.72/x
  3. Step 3: Cross multiply
    79,623.05x = 119,434.58 × 20,458.72
  4. Step 4: Simplify right side
    79,623.05x = 2,443,478,383.10
  5. Step 5: Solve for x
    x = 2,443,478,383.10/79,623.05
  6. Step 6: Final answer
    x = 30,688.08

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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.