Home / 51,200.04-76,781.58-19,618.96

Finding the Fourth Proportional to 51,200.04, 76,781.58 and 19,618.96

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Solution

The fourth proportional to 51,200.04, 76,781.58 and 19,618.96 is: 29,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,200.04 : 76,781.58 = 19,618.96 : x
  2. Step 2: Convert to fraction form
    51,200.04/76,781.58 = 19,618.96/x
  3. Step 3: Cross multiply
    51,200.04x = 76,781.58 × 19,618.96
  4. Step 4: Simplify right side
    51,200.04x = 1,506,374,746.76
  5. Step 5: Solve for x
    x = 1,506,374,746.76/51,200.04
  6. Step 6: Final answer
    x = 29,421.36

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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.