Home / 86,347.58-129,539.05-36,427.82

Finding the Fourth Proportional to 86,347.58, 129,539.05 and 36,427.82

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Solution

The fourth proportional to 86,347.58, 129,539.05 and 36,427.82 is: 54,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,347.58 : 129,539.05 = 36,427.82 : x
  2. Step 2: Convert to fraction form
    86,347.58/129,539.05 = 36,427.82/x
  3. Step 3: Cross multiply
    86,347.58x = 129,539.05 × 36,427.82
  4. Step 4: Simplify right side
    86,347.58x = 4,718,824,457.61
  5. Step 5: Solve for x
    x = 4,718,824,457.61/86,347.58
  6. Step 6: Final answer
    x = 54,649.18

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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.