Home / 71,030.10-98,021.20-39,200.95

Finding the Fourth Proportional to 71,030.10, 98,021.20 and 39,200.95

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Solution

The fourth proportional to 71,030.10, 98,021.20 and 39,200.95 is: 54,097.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,030.10 : 98,021.20 = 39,200.95 : x
  2. Step 2: Convert to fraction form
    71,030.10/98,021.20 = 39,200.95/x
  3. Step 3: Cross multiply
    71,030.10x = 98,021.20 × 39,200.95
  4. Step 4: Simplify right side
    71,030.10x = 3,842,524,160.14
  5. Step 5: Solve for x
    x = 3,842,524,160.14/71,030.10
  6. Step 6: Final answer
    x = 54,097.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.