Home / 79,971.54-119,953.20-30,047.79

Finding the Fourth Proportional to 79,971.54, 119,953.20 and 30,047.79

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Solution

The fourth proportional to 79,971.54, 119,953.20 and 30,047.79 is: 45,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,971.54 : 119,953.20 = 30,047.79 : x
  2. Step 2: Convert to fraction form
    79,971.54/119,953.20 = 30,047.79/x
  3. Step 3: Cross multiply
    79,971.54x = 119,953.20 × 30,047.79
  4. Step 4: Simplify right side
    79,971.54x = 3,604,329,125.93
  5. Step 5: Solve for x
    x = 3,604,329,125.93/79,971.54
  6. Step 6: Final answer
    x = 45,070.15

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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.