Home / 86,390.07-129,599.00-30,228.93

Finding the Fourth Proportional to 86,390.07, 129,599.00 and 30,228.93

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Solution

The fourth proportional to 86,390.07, 129,599.00 and 30,228.93 is: 45,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,390.07 : 129,599.00 = 30,228.93 : x
  2. Step 2: Convert to fraction form
    86,390.07/129,599.00 = 30,228.93/x
  3. Step 3: Cross multiply
    86,390.07x = 129,599.00 × 30,228.93
  4. Step 4: Simplify right side
    86,390.07x = 3,917,638,299.93
  5. Step 5: Solve for x
    x = 3,917,638,299.93/86,390.07
  6. Step 6: Final answer
    x = 45,348.25

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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.