Home / 56,028.81-77,318.77-30,535.42

Finding the Fourth Proportional to 56,028.81, 77,318.77 and 30,535.42

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Solution

The fourth proportional to 56,028.81, 77,318.77 and 30,535.42 is: 42,138.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,028.81 : 77,318.77 = 30,535.42 : x
  2. Step 2: Convert to fraction form
    56,028.81/77,318.77 = 30,535.42/x
  3. Step 3: Cross multiply
    56,028.81x = 77,318.77 × 30,535.42
  4. Step 4: Simplify right side
    56,028.81x = 2,360,960,810.87
  5. Step 5: Solve for x
    x = 2,360,960,810.87/56,028.81
  6. Step 6: Final answer
    x = 42,138.33

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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.