Home / 105,609.76-145,741.44-57,864.92

Finding the Fourth Proportional to 105,609.76, 145,741.44 and 57,864.92

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Solution

The fourth proportional to 105,609.76, 145,741.44 and 57,864.92 is: 79,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,609.76 : 145,741.44 = 57,864.92 : x
  2. Step 2: Convert to fraction form
    105,609.76/145,741.44 = 57,864.92/x
  3. Step 3: Cross multiply
    105,609.76x = 145,741.44 × 57,864.92
  4. Step 4: Simplify right side
    105,609.76x = 8,433,316,766.28
  5. Step 5: Solve for x
    x = 8,433,316,766.28/105,609.76
  6. Step 6: Final answer
    x = 79,853.57

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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.