Home / 56,358.41-84,534.71-18,918.77

Finding the Fourth Proportional to 56,358.41, 84,534.71 and 18,918.77

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Solution

The fourth proportional to 56,358.41, 84,534.71 and 18,918.77 is: 28,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.41 : 84,534.71 = 18,918.77 : x
  2. Step 2: Convert to fraction form
    56,358.41/84,534.71 = 18,918.77/x
  3. Step 3: Cross multiply
    56,358.41x = 84,534.71 × 18,918.77
  4. Step 4: Simplify right side
    56,358.41x = 1,599,292,218.24
  5. Step 5: Solve for x
    x = 1,599,292,218.24/56,358.41
  6. Step 6: Final answer
    x = 28,377.17

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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.