Home / 53,531.79-73,871.91-30,871.74

Finding the Fourth Proportional to 53,531.79, 73,871.91 and 30,871.74

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Solution

The fourth proportional to 53,531.79, 73,871.91 and 30,871.74 is: 42,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,531.79 : 73,871.91 = 30,871.74 : x
  2. Step 2: Convert to fraction form
    53,531.79/73,871.91 = 30,871.74/x
  3. Step 3: Cross multiply
    53,531.79x = 73,871.91 × 30,871.74
  4. Step 4: Simplify right side
    53,531.79x = 2,280,554,398.82
  5. Step 5: Solve for x
    x = 2,280,554,398.82/53,531.79
  6. Step 6: Final answer
    x = 42,601.87

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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.