Home / 56,119.05-77,441.87-30,624.77

Finding the Fourth Proportional to 56,119.05, 77,441.87 and 30,624.77

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Solution

The fourth proportional to 56,119.05, 77,441.87 and 30,624.77 is: 42,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,119.05 : 77,441.87 = 30,624.77 : x
  2. Step 2: Convert to fraction form
    56,119.05/77,441.87 = 30,624.77/x
  3. Step 3: Cross multiply
    56,119.05x = 77,441.87 × 30,624.77
  4. Step 4: Simplify right side
    56,119.05x = 2,371,639,727.29
  5. Step 5: Solve for x
    x = 2,371,639,727.29/56,119.05
  6. Step 6: Final answer
    x = 42,260.87

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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.