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Finding the Fourth Proportional to 90,857.67, 125,401.68 and 52,623.51

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Solution

The fourth proportional to 90,857.67, 125,401.68 and 52,623.51 is: 72,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,857.67 : 125,401.68 = 52,623.51 : x
  2. Step 2: Convert to fraction form
    90,857.67/125,401.68 = 52,623.51/x
  3. Step 3: Cross multiply
    90,857.67x = 125,401.68 × 52,623.51
  4. Step 4: Simplify right side
    90,857.67x = 6,599,076,561.50
  5. Step 5: Solve for x
    x = 6,599,076,561.50/90,857.67
  6. Step 6: Final answer
    x = 72,630.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.