Home / 56,380.28-77,804.81-30,887.57

Finding the Fourth Proportional to 56,380.28, 77,804.81 and 30,887.57

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Solution

The fourth proportional to 56,380.28, 77,804.81 and 30,887.57 is: 42,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,380.28 : 77,804.81 = 30,887.57 : x
  2. Step 2: Convert to fraction form
    56,380.28/77,804.81 = 30,887.57/x
  3. Step 3: Cross multiply
    56,380.28x = 77,804.81 × 30,887.57
  4. Step 4: Simplify right side
    56,380.28x = 2,403,201,203.41
  5. Step 5: Solve for x
    x = 2,403,201,203.41/56,380.28
  6. Step 6: Final answer
    x = 42,624.86

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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.