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Finding the Fourth Proportional to 64,913.57, 89,580.99 and 35,105.57

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Solution

The fourth proportional to 64,913.57, 89,580.99 and 35,105.57 is: 48,445.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,913.57 : 89,580.99 = 35,105.57 : x
  2. Step 2: Convert to fraction form
    64,913.57/89,580.99 = 35,105.57/x
  3. Step 3: Cross multiply
    64,913.57x = 89,580.99 × 35,105.57
  4. Step 4: Simplify right side
    64,913.57x = 3,144,791,091.68
  5. Step 5: Solve for x
    x = 3,144,791,091.68/64,913.57
  6. Step 6: Final answer
    x = 48,445.82

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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.