Home / 51,665.81-77,471.75-18,381.02

Finding the Fourth Proportional to 51,665.81, 77,471.75 and 18,381.02

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Solution

The fourth proportional to 51,665.81, 77,471.75 and 18,381.02 is: 27,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,665.81 : 77,471.75 = 18,381.02 : x
  2. Step 2: Convert to fraction form
    51,665.81/77,471.75 = 18,381.02/x
  3. Step 3: Cross multiply
    51,665.81x = 77,471.75 × 18,381.02
  4. Step 4: Simplify right side
    51,665.81x = 1,424,009,444.78
  5. Step 5: Solve for x
    x = 1,424,009,444.78/51,665.81
  6. Step 6: Final answer
    x = 27,561.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.