Home / 86,214.07-129,324.50-30,059.91

Finding the Fourth Proportional to 86,214.07, 129,324.50 and 30,059.91

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Solution

The fourth proportional to 86,214.07, 129,324.50 and 30,059.91 is: 45,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,214.07 : 129,324.50 = 30,059.91 : x
  2. Step 2: Convert to fraction form
    86,214.07/129,324.50 = 30,059.91/x
  3. Step 3: Cross multiply
    86,214.07x = 129,324.50 × 30,059.91
  4. Step 4: Simplify right side
    86,214.07x = 3,887,482,830.80
  5. Step 5: Solve for x
    x = 3,887,482,830.80/86,214.07
  6. Step 6: Final answer
    x = 45,091.05

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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.