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Finding the Fourth Proportional to 92,854.53, 128,135.73 and 50,412.15

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Solution

The fourth proportional to 92,854.53, 128,135.73 and 50,412.15 is: 69,566.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,854.53 : 128,135.73 = 50,412.15 : x
  2. Step 2: Convert to fraction form
    92,854.53/128,135.73 = 50,412.15/x
  3. Step 3: Cross multiply
    92,854.53x = 128,135.73 × 50,412.15
  4. Step 4: Simplify right side
    92,854.53x = 6,459,597,641.12
  5. Step 5: Solve for x
    x = 6,459,597,641.12/92,854.53
  6. Step 6: Final answer
    x = 69,566.86

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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.