Home / 53,127.10-79,693.53-19,855.90

Finding the Fourth Proportional to 53,127.10, 79,693.53 and 19,855.90

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Solution

The fourth proportional to 53,127.10, 79,693.53 and 19,855.90 is: 29,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,127.10 : 79,693.53 = 19,855.90 : x
  2. Step 2: Convert to fraction form
    53,127.10/79,693.53 = 19,855.90/x
  3. Step 3: Cross multiply
    53,127.10x = 79,693.53 × 19,855.90
  4. Step 4: Simplify right side
    53,127.10x = 1,582,386,762.33
  5. Step 5: Solve for x
    x = 1,582,386,762.33/53,127.10
  6. Step 6: Final answer
    x = 29,784.93

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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.