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Finding the Fourth Proportional to 92,961.62, 128,284.37 and 52,688.40

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Solution

The fourth proportional to 92,961.62, 128,284.37 and 52,688.40 is: 72,708.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,961.62 : 128,284.37 = 52,688.40 : x
  2. Step 2: Convert to fraction form
    92,961.62/128,284.37 = 52,688.40/x
  3. Step 3: Cross multiply
    92,961.62x = 128,284.37 × 52,688.40
  4. Step 4: Simplify right side
    92,961.62x = 6,759,098,088.27
  5. Step 5: Solve for x
    x = 6,759,098,088.27/92,961.62
  6. Step 6: Final answer
    x = 72,708.48

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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.