Home / 79,423.70-109,531.58-53,968.23

Finding the Fourth Proportional to 79,423.70, 109,531.58 and 53,968.23

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Solution

The fourth proportional to 79,423.70, 109,531.58 and 53,968.23 is: 74,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,423.70 : 109,531.58 = 53,968.23 : x
  2. Step 2: Convert to fraction form
    79,423.70/109,531.58 = 53,968.23/x
  3. Step 3: Cross multiply
    79,423.70x = 109,531.58 × 53,968.23
  4. Step 4: Simplify right side
    79,423.70x = 5,911,225,231.86
  5. Step 5: Solve for x
    x = 5,911,225,231.86/79,423.70
  6. Step 6: Final answer
    x = 74,426.47

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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.