Home / 73,681.20-110,521.31-21,090.83

Finding the Fourth Proportional to 73,681.20, 110,521.31 and 21,090.83

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Solution

The fourth proportional to 73,681.20, 110,521.31 and 21,090.83 is: 31,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,681.20 : 110,521.31 = 21,090.83 : x
  2. Step 2: Convert to fraction form
    73,681.20/110,521.31 = 21,090.83/x
  3. Step 3: Cross multiply
    73,681.20x = 110,521.31 × 21,090.83
  4. Step 4: Simplify right side
    73,681.20x = 2,330,985,502.53
  5. Step 5: Solve for x
    x = 2,330,985,502.53/73,681.20
  6. Step 6: Final answer
    x = 31,636.10

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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.