Home / 56,124.30-77,451.96-30,630.86

Finding the Fourth Proportional to 56,124.30, 77,451.96 and 30,630.86

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Solution

The fourth proportional to 56,124.30, 77,451.96 and 30,630.86 is: 42,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,124.30 : 77,451.96 = 30,630.86 : x
  2. Step 2: Convert to fraction form
    56,124.30/77,451.96 = 30,630.86/x
  3. Step 3: Cross multiply
    56,124.30x = 77,451.96 × 30,630.86
  4. Step 4: Simplify right side
    56,124.30x = 2,372,420,143.49
  5. Step 5: Solve for x
    x = 2,372,420,143.49/56,124.30
  6. Step 6: Final answer
    x = 42,270.82

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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.