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Finding the Fourth Proportional to 71,385.56, 98,558.28 and 45,903.32

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Solution

The fourth proportional to 71,385.56, 98,558.28 and 45,903.32 is: 63,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,385.56 : 98,558.28 = 45,903.32 : x
  2. Step 2: Convert to fraction form
    71,385.56/98,558.28 = 45,903.32/x
  3. Step 3: Cross multiply
    71,385.56x = 98,558.28 × 45,903.32
  4. Step 4: Simplify right side
    71,385.56x = 4,524,152,265.49
  5. Step 5: Solve for x
    x = 4,524,152,265.49/71,385.56
  6. Step 6: Final answer
    x = 63,376.29

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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.