Home / 89,711.02-134,422.80-68,625.50

Finding the Fourth Proportional to 89,711.02, 134,422.80 and 68,625.50

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Solution

The fourth proportional to 89,711.02, 134,422.80 and 68,625.50 is: 102,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,711.02 : 134,422.80 = 68,625.50 : x
  2. Step 2: Convert to fraction form
    89,711.02/134,422.80 = 68,625.50/x
  3. Step 3: Cross multiply
    89,711.02x = 134,422.80 × 68,625.50
  4. Step 4: Simplify right side
    89,711.02x = 9,224,831,861.40
  5. Step 5: Solve for x
    x = 9,224,831,861.40/89,711.02
  6. Step 6: Final answer
    x = 102,828.30

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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.