Home / 56,126.28-77,453.90-30,975.78

Finding the Fourth Proportional to 56,126.28, 77,453.90 and 30,975.78

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Solution

The fourth proportional to 56,126.28, 77,453.90 and 30,975.78 is: 42,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,126.28 : 77,453.90 = 30,975.78 : x
  2. Step 2: Convert to fraction form
    56,126.28/77,453.90 = 30,975.78/x
  3. Step 3: Cross multiply
    56,126.28x = 77,453.90 × 30,975.78
  4. Step 4: Simplify right side
    56,126.28x = 2,399,194,966.54
  5. Step 5: Solve for x
    x = 2,399,194,966.54/56,126.28
  6. Step 6: Final answer
    x = 42,746.37

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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.