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Finding the Fourth Proportional to 65,807.28, 90,811.80 and 37,522.08

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Solution

The fourth proportional to 65,807.28, 90,811.80 and 37,522.08 is: 51,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,807.28 : 90,811.80 = 37,522.08 : x
  2. Step 2: Convert to fraction form
    65,807.28/90,811.80 = 37,522.08/x
  3. Step 3: Cross multiply
    65,807.28x = 90,811.80 × 37,522.08
  4. Step 4: Simplify right side
    65,807.28x = 3,407,447,624.54
  5. Step 5: Solve for x
    x = 3,407,447,624.54/65,807.28
  6. Step 6: Final answer
    x = 51,779.19

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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.