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Finding the Fourth Proportional to 65,502.54, 90,384.39 and 36,818.15

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Solution

The fourth proportional to 65,502.54, 90,384.39 and 36,818.15 is: 50,803.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,502.54 : 90,384.39 = 36,818.15 : x
  2. Step 2: Convert to fraction form
    65,502.54/90,384.39 = 36,818.15/x
  3. Step 3: Cross multiply
    65,502.54x = 90,384.39 × 36,818.15
  4. Step 4: Simplify right side
    65,502.54x = 3,327,785,576.76
  5. Step 5: Solve for x
    x = 3,327,785,576.76/65,502.54
  6. Step 6: Final answer
    x = 50,803.92

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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.