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Finding the Fourth Proportional to 92,958.34, 128,282.16 and 52,679.78

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Solution

The fourth proportional to 92,958.34, 128,282.16 and 52,679.78 is: 72,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,958.34 : 128,282.16 = 52,679.78 : x
  2. Step 2: Convert to fraction form
    92,958.34/128,282.16 = 52,679.78/x
  3. Step 3: Cross multiply
    92,958.34x = 128,282.16 × 52,679.78
  4. Step 4: Simplify right side
    92,958.34x = 6,757,875,966.72
  5. Step 5: Solve for x
    x = 6,757,875,966.72/92,958.34
  6. Step 6: Final answer
    x = 72,697.90

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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.