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Finding the Fourth Proportional to 65,490.92, 97,619 and 62,166.68

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Solution

The fourth proportional to 65,490.92, 97,619 and 62,166.68 is: 92,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.92 : 97,619 = 62,166.68 : x
  2. Step 2: Convert to fraction form
    65,490.92/97,619 = 62,166.68/x
  3. Step 3: Cross multiply
    65,490.92x = 97,619 × 62,166.68
  4. Step 4: Simplify right side
    65,490.92x = 6,068,649,134.92
  5. Step 5: Solve for x
    x = 6,068,649,134.92/65,490.92
  6. Step 6: Final answer
    x = 92,663.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.