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Finding the Fourth Proportional to 65,861.04, 90,888.96 and 37,568.40

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Solution

The fourth proportional to 65,861.04, 90,888.96 and 37,568.40 is: 51,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.04 : 90,888.96 = 37,568.40 : x
  2. Step 2: Convert to fraction form
    65,861.04/90,888.96 = 37,568.40/x
  3. Step 3: Cross multiply
    65,861.04x = 90,888.96 × 37,568.40
  4. Step 4: Simplify right side
    65,861.04x = 3,414,552,804.86
  5. Step 5: Solve for x
    x = 3,414,552,804.86/65,861.04
  6. Step 6: Final answer
    x = 51,844.81

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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.