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Finding the Fourth Proportional to 61,072.40, 91,630.20 and 58,912.40

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Solution

The fourth proportional to 61,072.40, 91,630.20 and 58,912.40 is: 88,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,072.40 : 91,630.20 = 58,912.40 : x
  2. Step 2: Convert to fraction form
    61,072.40/91,630.20 = 58,912.40/x
  3. Step 3: Cross multiply
    61,072.40x = 91,630.20 × 58,912.40
  4. Step 4: Simplify right side
    61,072.40x = 5,398,154,994.48
  5. Step 5: Solve for x
    x = 5,398,154,994.48/61,072.40
  6. Step 6: Final answer
    x = 88,389.44

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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.