Home / 56,124.28-77,451.15-30,973.78

Finding the Fourth Proportional to 56,124.28, 77,451.15 and 30,973.78

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Solution

The fourth proportional to 56,124.28, 77,451.15 and 30,973.78 is: 42,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,124.28 : 77,451.15 = 30,973.78 : x
  2. Step 2: Convert to fraction form
    56,124.28/77,451.15 = 30,973.78/x
  3. Step 3: Cross multiply
    56,124.28x = 77,451.15 × 30,973.78
  4. Step 4: Simplify right side
    56,124.28x = 2,398,954,880.85
  5. Step 5: Solve for x
    x = 2,398,954,880.85/56,124.28
  6. Step 6: Final answer
    x = 42,743.62

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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.