Home / 79,314.81-109,432.24-51,036.90

Finding the Fourth Proportional to 79,314.81, 109,432.24 and 51,036.90

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Solution

The fourth proportional to 79,314.81, 109,432.24 and 51,036.90 is: 70,416.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,314.81 : 109,432.24 = 51,036.90 : x
  2. Step 2: Convert to fraction form
    79,314.81/109,432.24 = 51,036.90/x
  3. Step 3: Cross multiply
    79,314.81x = 109,432.24 × 51,036.90
  4. Step 4: Simplify right side
    79,314.81x = 5,585,082,289.66
  5. Step 5: Solve for x
    x = 5,585,082,289.66/79,314.81
  6. Step 6: Final answer
    x = 70,416.64

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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.