Home / 56,021.50-77,310.48-30,871

Finding the Fourth Proportional to 56,021.50, 77,310.48 and 30,871

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Solution

The fourth proportional to 56,021.50, 77,310.48 and 30,871 is: 42,602.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,021.50 : 77,310.48 = 30,871 : x
  2. Step 2: Convert to fraction form
    56,021.50/77,310.48 = 30,871/x
  3. Step 3: Cross multiply
    56,021.50x = 77,310.48 × 30,871
  4. Step 4: Simplify right side
    56,021.50x = 2,386,651,828.08
  5. Step 5: Solve for x
    x = 2,386,651,828.08/56,021.50
  6. Step 6: Final answer
    x = 42,602.43

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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.