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Finding the Fourth Proportional to 65,779.00, 90,775.01 and 35,564.31

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Solution

The fourth proportional to 65,779.00, 90,775.01 and 35,564.31 is: 49,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,779.00 : 90,775.01 = 35,564.31 : x
  2. Step 2: Convert to fraction form
    65,779.00/90,775.01 = 35,564.31/x
  3. Step 3: Cross multiply
    65,779.00x = 90,775.01 × 35,564.31
  4. Step 4: Simplify right side
    65,779.00x = 3,228,350,684.80
  5. Step 5: Solve for x
    x = 3,228,350,684.80/65,779.00
  6. Step 6: Final answer
    x = 49,078.75

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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.