Home / 56,110.08-77,432.16-30,960.32

Finding the Fourth Proportional to 56,110.08, 77,432.16 and 30,960.32

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Solution

The fourth proportional to 56,110.08, 77,432.16 and 30,960.32 is: 42,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,110.08 : 77,432.16 = 30,960.32 : x
  2. Step 2: Convert to fraction form
    56,110.08/77,432.16 = 30,960.32/x
  3. Step 3: Cross multiply
    56,110.08x = 77,432.16 × 30,960.32
  4. Step 4: Simplify right side
    56,110.08x = 2,397,324,451.89
  5. Step 5: Solve for x
    x = 2,397,324,451.89/56,110.08
  6. Step 6: Final answer
    x = 42,725.38

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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.