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Finding the Fourth Proportional to 91,994.90, 137,992.35 and 64,001.30

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Solution

The fourth proportional to 91,994.90, 137,992.35 and 64,001.30 is: 96,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,994.90 : 137,992.35 = 64,001.30 : x
  2. Step 2: Convert to fraction form
    91,994.90/137,992.35 = 64,001.30/x
  3. Step 3: Cross multiply
    91,994.90x = 137,992.35 × 64,001.30
  4. Step 4: Simplify right side
    91,994.90x = 8,831,689,790.06
  5. Step 5: Solve for x
    x = 8,831,689,790.06/91,994.90
  6. Step 6: Final answer
    x = 96,001.95

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1.5x scale

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.