Home / 65,788.32-90,779.76-41,905.20

Finding the Fourth Proportional to 65,788.32, 90,779.76 and 41,905.20

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Solution

The fourth proportional to 65,788.32, 90,779.76 and 41,905.20 is: 57,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,788.32 : 90,779.76 = 41,905.20 : x
  2. Step 2: Convert to fraction form
    65,788.32/90,779.76 = 41,905.20/x
  3. Step 3: Cross multiply
    65,788.32x = 90,779.76 × 41,905.20
  4. Step 4: Simplify right side
    65,788.32x = 3,804,143,998.75
  5. Step 5: Solve for x
    x = 3,804,143,998.75/65,788.32
  6. Step 6: Final answer
    x = 57,824.00

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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.