Home / 68,435.02-102,655.44-21,686.86

Finding the Fourth Proportional to 68,435.02, 102,655.44 and 21,686.86

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Solution

The fourth proportional to 68,435.02, 102,655.44 and 21,686.86 is: 32,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,435.02 : 102,655.44 = 21,686.86 : x
  2. Step 2: Convert to fraction form
    68,435.02/102,655.44 = 21,686.86/x
  3. Step 3: Cross multiply
    68,435.02x = 102,655.44 × 21,686.86
  4. Step 4: Simplify right side
    68,435.02x = 2,226,274,155.52
  5. Step 5: Solve for x
    x = 2,226,274,155.52/68,435.02
  6. Step 6: Final answer
    x = 32,531.21

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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.