Home / 105,379.04-145,421.04-57,632.24

Finding the Fourth Proportional to 105,379.04, 145,421.04 and 57,632.24

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Solution

The fourth proportional to 105,379.04, 145,421.04 and 57,632.24 is: 79,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,379.04 : 145,421.04 = 57,632.24 : x
  2. Step 2: Convert to fraction form
    105,379.04/145,421.04 = 57,632.24/x
  3. Step 3: Cross multiply
    105,379.04x = 145,421.04 × 57,632.24
  4. Step 4: Simplify right side
    105,379.04x = 8,380,940,278.33
  5. Step 5: Solve for x
    x = 8,380,940,278.33/105,379.04
  6. Step 6: Final answer
    x = 79,531.38

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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.