Home / 79,347.03-109,502.33-47,509.85

Finding the Fourth Proportional to 79,347.03, 109,502.33 and 47,509.85

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Solution

The fourth proportional to 79,347.03, 109,502.33 and 47,509.85 is: 65,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.03 : 109,502.33 = 47,509.85 : x
  2. Step 2: Convert to fraction form
    79,347.03/109,502.33 = 47,509.85/x
  3. Step 3: Cross multiply
    79,347.03x = 109,502.33 × 47,509.85
  4. Step 4: Simplify right side
    79,347.03x = 5,202,438,487.89
  5. Step 5: Solve for x
    x = 5,202,438,487.89/79,347.03
  6. Step 6: Final answer
    x = 65,565.64

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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.