Home / 86,382.42-129,573.63-49,420.50

Finding the Fourth Proportional to 86,382.42, 129,573.63 and 49,420.50

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Solution

The fourth proportional to 86,382.42, 129,573.63 and 49,420.50 is: 74,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,382.42 : 129,573.63 = 49,420.50 : x
  2. Step 2: Convert to fraction form
    86,382.42/129,573.63 = 49,420.50/x
  3. Step 3: Cross multiply
    86,382.42x = 129,573.63 × 49,420.50
  4. Step 4: Simplify right side
    86,382.42x = 6,403,593,581.42
  5. Step 5: Solve for x
    x = 6,403,593,581.42/86,382.42
  6. Step 6: Final answer
    x = 74,130.75

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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.