Home / 105,528.96-145,626.60-57,779.46

Finding the Fourth Proportional to 105,528.96, 145,626.60 and 57,779.46

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Solution

The fourth proportional to 105,528.96, 145,626.60 and 57,779.46 is: 79,733.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,528.96 : 145,626.60 = 57,779.46 : x
  2. Step 2: Convert to fraction form
    105,528.96/145,626.60 = 57,779.46/x
  3. Step 3: Cross multiply
    105,528.96x = 145,626.60 × 57,779.46
  4. Step 4: Simplify right side
    105,528.96x = 8,414,226,309.64
  5. Step 5: Solve for x
    x = 8,414,226,309.64/105,528.96
  6. Step 6: Final answer
    x = 79,733.81

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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.