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Finding the Fourth Proportional to 91,837.76, 137,756.64 and 36,433.76

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Solution

The fourth proportional to 91,837.76, 137,756.64 and 36,433.76 is: 54,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,837.76 : 137,756.64 = 36,433.76 : x
  2. Step 2: Convert to fraction form
    91,837.76/137,756.64 = 36,433.76/x
  3. Step 3: Cross multiply
    91,837.76x = 137,756.64 × 36,433.76
  4. Step 4: Simplify right side
    91,837.76x = 5,018,992,360.17
  5. Step 5: Solve for x
    x = 5,018,992,360.17/91,837.76
  6. Step 6: Final answer
    x = 54,650.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.