Home / 86,045.09-129,043.94-61,011.23

Finding the Fourth Proportional to 86,045.09, 129,043.94 and 61,011.23

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Solution

The fourth proportional to 86,045.09, 129,043.94 and 61,011.23 is: 91,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045.09 : 129,043.94 = 61,011.23 : x
  2. Step 2: Convert to fraction form
    86,045.09/129,043.94 = 61,011.23/x
  3. Step 3: Cross multiply
    86,045.09x = 129,043.94 × 61,011.23
  4. Step 4: Simplify right side
    86,045.09x = 7,873,128,553.17
  5. Step 5: Solve for x
    x = 7,873,128,553.17/86,045.09
  6. Step 6: Final answer
    x = 91,500.04

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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.