Home / 56,433.68-77,874.28-30,935.96

Finding the Fourth Proportional to 56,433.68, 77,874.28 and 30,935.96

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Solution

The fourth proportional to 56,433.68, 77,874.28 and 30,935.96 is: 42,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.68 : 77,874.28 = 30,935.96 : x
  2. Step 2: Convert to fraction form
    56,433.68/77,874.28 = 30,935.96/x
  3. Step 3: Cross multiply
    56,433.68x = 77,874.28 × 30,935.96
  4. Step 4: Simplify right side
    56,433.68x = 2,409,115,611.11
  5. Step 5: Solve for x
    x = 2,409,115,611.11/56,433.68
  6. Step 6: Final answer
    x = 42,689.32

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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.