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Finding the Fourth Proportional to 70,663.90, 97,511.60 and 40,449.46

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Solution

The fourth proportional to 70,663.90, 97,511.60 and 40,449.46 is: 55,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,663.90 : 97,511.60 = 40,449.46 : x
  2. Step 2: Convert to fraction form
    70,663.90/97,511.60 = 40,449.46/x
  3. Step 3: Cross multiply
    70,663.90x = 97,511.60 × 40,449.46
  4. Step 4: Simplify right side
    70,663.90x = 3,944,291,563.74
  5. Step 5: Solve for x
    x = 3,944,291,563.74/70,663.90
  6. Step 6: Final answer
    x = 55,817.63

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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.