Home / 86,483.58-129,725.37-39,775.74

Finding the Fourth Proportional to 86,483.58, 129,725.37 and 39,775.74

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Solution

The fourth proportional to 86,483.58, 129,725.37 and 39,775.74 is: 59,663.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,483.58 : 129,725.37 = 39,775.74 : x
  2. Step 2: Convert to fraction form
    86,483.58/129,725.37 = 39,775.74/x
  3. Step 3: Cross multiply
    86,483.58x = 129,725.37 × 39,775.74
  4. Step 4: Simplify right side
    86,483.58x = 5,159,922,588.52
  5. Step 5: Solve for x
    x = 5,159,922,588.52/86,483.58
  6. Step 6: Final answer
    x = 59,663.61

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Similar ratio
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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.