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Finding the Fourth Proportional to 92,810.84, 128,079.06 and 50,369.40

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Solution

The fourth proportional to 92,810.84, 128,079.06 and 50,369.40 is: 69,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.84 : 128,079.06 = 50,369.40 : x
  2. Step 2: Convert to fraction form
    92,810.84/128,079.06 = 50,369.40/x
  3. Step 3: Cross multiply
    92,810.84x = 128,079.06 × 50,369.40
  4. Step 4: Simplify right side
    92,810.84x = 6,451,265,404.76
  5. Step 5: Solve for x
    x = 6,451,265,404.76/92,810.84
  6. Step 6: Final answer
    x = 69,509.83

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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.