Home / 105,779.15-145,979.01-58,033.88

Finding the Fourth Proportional to 105,779.15, 145,979.01 and 58,033.88

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Solution

The fourth proportional to 105,779.15, 145,979.01 and 58,033.88 is: 80,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,779.15 : 145,979.01 = 58,033.88 : x
  2. Step 2: Convert to fraction form
    105,779.15/145,979.01 = 58,033.88/x
  3. Step 3: Cross multiply
    105,779.15x = 145,979.01 × 58,033.88
  4. Step 4: Simplify right side
    105,779.15x = 8,471,728,348.86
  5. Step 5: Solve for x
    x = 8,471,728,348.86/105,779.15
  6. Step 6: Final answer
    x = 80,088.83

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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.