Home / 54,710.80-75,501.36-30,835.20

Finding the Fourth Proportional to 54,710.80, 75,501.36 and 30,835.20

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Solution

The fourth proportional to 54,710.80, 75,501.36 and 30,835.20 is: 42,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,710.80 : 75,501.36 = 30,835.20 : x
  2. Step 2: Convert to fraction form
    54,710.80/75,501.36 = 30,835.20/x
  3. Step 3: Cross multiply
    54,710.80x = 75,501.36 × 30,835.20
  4. Step 4: Simplify right side
    54,710.80x = 2,328,099,535.87
  5. Step 5: Solve for x
    x = 2,328,099,535.87/54,710.80
  6. Step 6: Final answer
    x = 42,552.83

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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.