Home / 79,623.10-119,434.74-20,459.26

Finding the Fourth Proportional to 79,623.10, 119,434.74 and 20,459.26

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Solution

The fourth proportional to 79,623.10, 119,434.74 and 20,459.26 is: 30,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.10 : 119,434.74 = 20,459.26 : x
  2. Step 2: Convert to fraction form
    79,623.10/119,434.74 = 20,459.26/x
  3. Step 3: Cross multiply
    79,623.10x = 119,434.74 × 20,459.26
  4. Step 4: Simplify right side
    79,623.10x = 2,443,546,398.69
  5. Step 5: Solve for x
    x = 2,443,546,398.69/79,623.10
  6. Step 6: Final answer
    x = 30,688.91

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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.