Home / 86,890.10-129,796.02-63,008.06

Finding the Fourth Proportional to 86,890.10, 129,796.02 and 63,008.06

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Solution

The fourth proportional to 86,890.10, 129,796.02 and 63,008.06 is: 94,121.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,890.10 : 129,796.02 = 63,008.06 : x
  2. Step 2: Convert to fraction form
    86,890.10/129,796.02 = 63,008.06/x
  3. Step 3: Cross multiply
    86,890.10x = 129,796.02 × 63,008.06
  4. Step 4: Simplify right side
    86,890.10x = 8,178,194,766.94
  5. Step 5: Solve for x
    x = 8,178,194,766.94/86,890.10
  6. Step 6: Final answer
    x = 94,121.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.