Home / 57,403.04-86,102.16-19,971.58

Finding the Fourth Proportional to 57,403.04, 86,102.16 and 19,971.58

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Solution

The fourth proportional to 57,403.04, 86,102.16 and 19,971.58 is: 29,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,403.04 : 86,102.16 = 19,971.58 : x
  2. Step 2: Convert to fraction form
    57,403.04/86,102.16 = 19,971.58/x
  3. Step 3: Cross multiply
    57,403.04x = 86,102.16 × 19,971.58
  4. Step 4: Simplify right side
    57,403.04x = 1,719,596,176.61
  5. Step 5: Solve for x
    x = 1,719,596,176.61/57,403.04
  6. Step 6: Final answer
    x = 29,956.53

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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.