Home / 105,526.64-145,626.72-57,779.96

Finding the Fourth Proportional to 105,526.64, 145,626.72 and 57,779.96

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Solution

The fourth proportional to 105,526.64, 145,626.72 and 57,779.96 is: 79,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,526.64 : 145,626.72 = 57,779.96 : x
  2. Step 2: Convert to fraction form
    105,526.64/145,626.72 = 57,779.96/x
  3. Step 3: Cross multiply
    105,526.64x = 145,626.72 × 57,779.96
  4. Step 4: Simplify right side
    105,526.64x = 8,414,306,056.53
  5. Step 5: Solve for x
    x = 8,414,306,056.53/105,526.64
  6. Step 6: Final answer
    x = 79,736.32

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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.