Home / 56,120.94-77,448.76-30,628.70

Finding the Fourth Proportional to 56,120.94, 77,448.76 and 30,628.70

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Solution

The fourth proportional to 56,120.94, 77,448.76 and 30,628.70 is: 42,268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,120.94 : 77,448.76 = 30,628.70 : x
  2. Step 2: Convert to fraction form
    56,120.94/77,448.76 = 30,628.70/x
  3. Step 3: Cross multiply
    56,120.94x = 77,448.76 × 30,628.70
  4. Step 4: Simplify right side
    56,120.94x = 2,372,154,835.41
  5. Step 5: Solve for x
    x = 2,372,154,835.41/56,120.94
  6. Step 6: Final answer
    x = 42,268.62

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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.