Home / 55,008.81-75,896.87-31,135.01

Finding the Fourth Proportional to 55,008.81, 75,896.87 and 31,135.01

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Solution

The fourth proportional to 55,008.81, 75,896.87 and 31,135.01 is: 42,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,008.81 : 75,896.87 = 31,135.01 : x
  2. Step 2: Convert to fraction form
    55,008.81/75,896.87 = 31,135.01/x
  3. Step 3: Cross multiply
    55,008.81x = 75,896.87 × 31,135.01
  4. Step 4: Simplify right side
    55,008.81x = 2,363,049,271.26
  5. Step 5: Solve for x
    x = 2,363,049,271.26/55,008.81
  6. Step 6: Final answer
    x = 42,957.65

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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.