Home / 55,011.80-75,807.42-39,051.56

Finding the Fourth Proportional to 55,011.80, 75,807.42 and 39,051.56

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Solution

The fourth proportional to 55,011.80, 75,807.42 and 39,051.56 is: 53,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,011.80 : 75,807.42 = 39,051.56 : x
  2. Step 2: Convert to fraction form
    55,011.80/75,807.42 = 39,051.56/x
  3. Step 3: Cross multiply
    55,011.80x = 75,807.42 × 39,051.56
  4. Step 4: Simplify right side
    55,011.80x = 2,960,398,010.58
  5. Step 5: Solve for x
    x = 2,960,398,010.58/55,011.80
  6. Step 6: Final answer
    x = 53,813.87

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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.