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Finding the Fourth Proportional to 145,627.92, 218,540.70 and 56,881.08

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Solution

The fourth proportional to 145,627.92, 218,540.70 and 56,881.08 is: 85,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627.92 : 218,540.70 = 56,881.08 : x
  2. Step 2: Convert to fraction form
    145,627.92/218,540.70 = 56,881.08/x
  3. Step 3: Cross multiply
    145,627.92x = 218,540.70 × 56,881.08
  4. Step 4: Simplify right side
    145,627.92x = 12,430,831,039.96
  5. Step 5: Solve for x
    x = 12,430,831,039.96/145,627.92
  6. Step 6: Final answer
    x = 85,360.22

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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.