Home / 68,364.40-102,398.98-66,691.35

Finding the Fourth Proportional to 68,364.40, 102,398.98 and 66,691.35

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Solution

The fourth proportional to 68,364.40, 102,398.98 and 66,691.35 is: 99,893.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,364.40 : 102,398.98 = 66,691.35 : x
  2. Step 2: Convert to fraction form
    68,364.40/102,398.98 = 66,691.35/x
  3. Step 3: Cross multiply
    68,364.40x = 102,398.98 × 66,691.35
  4. Step 4: Simplify right side
    68,364.40x = 6,829,125,369.37
  5. Step 5: Solve for x
    x = 6,829,125,369.37/68,364.40
  6. Step 6: Final answer
    x = 99,893.01

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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.