Home / 55,381.49-76,423.79-31,505.93

Finding the Fourth Proportional to 55,381.49, 76,423.79 and 31,505.93

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Solution

The fourth proportional to 55,381.49, 76,423.79 and 31,505.93 is: 43,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,381.49 : 76,423.79 = 31,505.93 : x
  2. Step 2: Convert to fraction form
    55,381.49/76,423.79 = 31,505.93/x
  3. Step 3: Cross multiply
    55,381.49x = 76,423.79 × 31,505.93
  4. Step 4: Simplify right side
    55,381.49x = 2,407,802,038.43
  5. Step 5: Solve for x
    x = 2,407,802,038.43/55,381.49
  6. Step 6: Final answer
    x = 43,476.66

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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.