Home / 56,126.40-77,455.56-30,975.84

Finding the Fourth Proportional to 56,126.40, 77,455.56 and 30,975.84

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Solution

The fourth proportional to 56,126.40, 77,455.56 and 30,975.84 is: 42,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,126.40 : 77,455.56 = 30,975.84 : x
  2. Step 2: Convert to fraction form
    56,126.40/77,455.56 = 30,975.84/x
  3. Step 3: Cross multiply
    56,126.40x = 77,455.56 × 30,975.84
  4. Step 4: Simplify right side
    56,126.40x = 2,399,251,033.67
  5. Step 5: Solve for x
    x = 2,399,251,033.67/56,126.40
  6. Step 6: Final answer
    x = 42,747.28

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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.