Home / 50,985.13-76,488.64-21,385.91

Finding the Fourth Proportional to 50,985.13, 76,488.64 and 21,385.91

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Solution

The fourth proportional to 50,985.13, 76,488.64 and 21,385.91 is: 32,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,985.13 : 76,488.64 = 21,385.91 : x
  2. Step 2: Convert to fraction form
    50,985.13/76,488.64 = 21,385.91/x
  3. Step 3: Cross multiply
    50,985.13x = 76,488.64 × 21,385.91
  4. Step 4: Simplify right side
    50,985.13x = 1,635,778,878.57
  5. Step 5: Solve for x
    x = 1,635,778,878.57/50,985.13
  6. Step 6: Final answer
    x = 32,083.45

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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.