Home / 86,366.63-129,539.01-30,204.47

Finding the Fourth Proportional to 86,366.63, 129,539.01 and 30,204.47

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Solution

The fourth proportional to 86,366.63, 129,539.01 and 30,204.47 is: 45,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,366.63 : 129,539.01 = 30,204.47 : x
  2. Step 2: Convert to fraction form
    86,366.63/129,539.01 = 30,204.47/x
  3. Step 3: Cross multiply
    86,366.63x = 129,539.01 × 30,204.47
  4. Step 4: Simplify right side
    86,366.63x = 3,912,657,141.37
  5. Step 5: Solve for x
    x = 3,912,657,141.37/86,366.63
  6. Step 6: Final answer
    x = 45,302.88

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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.