Home / 79,547.36-119,318.28-20,383.52

Finding the Fourth Proportional to 79,547.36, 119,318.28 and 20,383.52

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Solution

The fourth proportional to 79,547.36, 119,318.28 and 20,383.52 is: 30,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,547.36 : 119,318.28 = 20,383.52 : x
  2. Step 2: Convert to fraction form
    79,547.36/119,318.28 = 20,383.52/x
  3. Step 3: Cross multiply
    79,547.36x = 119,318.28 × 20,383.52
  4. Step 4: Simplify right side
    79,547.36x = 2,432,126,546.75
  5. Step 5: Solve for x
    x = 2,432,126,546.75/79,547.36
  6. Step 6: Final answer
    x = 30,574.57

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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.