Home / 79,232.48-109,339.08-43,421.72

Finding the Fourth Proportional to 79,232.48, 109,339.08 and 43,421.72

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Solution

The fourth proportional to 79,232.48, 109,339.08 and 43,421.72 is: 59,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,232.48 : 109,339.08 = 43,421.72 : x
  2. Step 2: Convert to fraction form
    79,232.48/109,339.08 = 43,421.72/x
  3. Step 3: Cross multiply
    79,232.48x = 109,339.08 × 43,421.72
  4. Step 4: Simplify right side
    79,232.48x = 4,747,690,916.82
  5. Step 5: Solve for x
    x = 4,747,690,916.82/79,232.48
  6. Step 6: Final answer
    x = 59,921.02

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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.