Home / 55,015.47-75,908.75-31,136.94

Finding the Fourth Proportional to 55,015.47, 75,908.75 and 31,136.94

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Solution

The fourth proportional to 55,015.47, 75,908.75 and 31,136.94 is: 42,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,015.47 : 75,908.75 = 31,136.94 : x
  2. Step 2: Convert to fraction form
    55,015.47/75,908.75 = 31,136.94/x
  3. Step 3: Cross multiply
    55,015.47x = 75,908.75 × 31,136.94
  4. Step 4: Simplify right side
    55,015.47x = 2,363,566,038.54
  5. Step 5: Solve for x
    x = 2,363,566,038.54/55,015.47
  6. Step 6: Final answer
    x = 42,961.84

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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.