Home / 56,155.44-77,491.80-30,662.76

Finding the Fourth Proportional to 56,155.44, 77,491.80 and 30,662.76

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Solution

The fourth proportional to 56,155.44, 77,491.80 and 30,662.76 is: 42,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,155.44 : 77,491.80 = 30,662.76 : x
  2. Step 2: Convert to fraction form
    56,155.44/77,491.80 = 30,662.76/x
  3. Step 3: Cross multiply
    56,155.44x = 77,491.80 × 30,662.76
  4. Step 4: Simplify right side
    56,155.44x = 2,376,112,465.37
  5. Step 5: Solve for x
    x = 2,376,112,465.37/56,155.44
  6. Step 6: Final answer
    x = 42,313.13

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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.