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Finding the Fourth Proportional to 56,802.72, 78,401.11 and 35,308.68

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Solution

The fourth proportional to 56,802.72, 78,401.11 and 35,308.68 is: 48,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,802.72 : 78,401.11 = 35,308.68 : x
  2. Step 2: Convert to fraction form
    56,802.72/78,401.11 = 35,308.68/x
  3. Step 3: Cross multiply
    56,802.72x = 78,401.11 × 35,308.68
  4. Step 4: Simplify right side
    56,802.72x = 2,768,239,704.63
  5. Step 5: Solve for x
    x = 2,768,239,704.63/56,802.72
  6. Step 6: Final answer
    x = 48,734.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.