Home / 86,045.58-129,084.48-38,659.50

Finding the Fourth Proportional to 86,045.58, 129,084.48 and 38,659.50

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Solution

The fourth proportional to 86,045.58, 129,084.48 and 38,659.50 is: 57,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,045.58 : 129,084.48 = 38,659.50 : x
  2. Step 2: Convert to fraction form
    86,045.58/129,084.48 = 38,659.50/x
  3. Step 3: Cross multiply
    86,045.58x = 129,084.48 × 38,659.50
  4. Step 4: Simplify right side
    86,045.58x = 4,990,341,454.56
  5. Step 5: Solve for x
    x = 4,990,341,454.56/86,045.58
  6. Step 6: Final answer
    x = 57,996.49

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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.