Home / 52,457.90-78,671.18-19,170.25

Finding the Fourth Proportional to 52,457.90, 78,671.18 and 19,170.25

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Solution

The fourth proportional to 52,457.90, 78,671.18 and 19,170.25 is: 28,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,457.90 : 78,671.18 = 19,170.25 : x
  2. Step 2: Convert to fraction form
    52,457.90/78,671.18 = 19,170.25/x
  3. Step 3: Cross multiply
    52,457.90x = 78,671.18 × 19,170.25
  4. Step 4: Simplify right side
    52,457.90x = 1,508,146,039.64
  5. Step 5: Solve for x
    x = 1,508,146,039.64/52,457.90
  6. Step 6: Final answer
    x = 28,749.65

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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.