Home / 86,779.07-129,984.02-51,202.04

Finding the Fourth Proportional to 86,779.07, 129,984.02 and 51,202.04

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Solution

The fourth proportional to 86,779.07, 129,984.02 and 51,202.04 is: 76,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,779.07 : 129,984.02 = 51,202.04 : x
  2. Step 2: Convert to fraction form
    86,779.07/129,984.02 = 51,202.04/x
  3. Step 3: Cross multiply
    86,779.07x = 129,984.02 × 51,202.04
  4. Step 4: Simplify right side
    86,779.07x = 6,655,446,735.39
  5. Step 5: Solve for x
    x = 6,655,446,735.39/86,779.07
  6. Step 6: Final answer
    x = 76,694.15

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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.