Home / 79,021.64-109,046.02-45,038.12

Finding the Fourth Proportional to 79,021.64, 109,046.02 and 45,038.12

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Solution

The fourth proportional to 79,021.64, 109,046.02 and 45,038.12 is: 62,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,021.64 : 109,046.02 = 45,038.12 : x
  2. Step 2: Convert to fraction form
    79,021.64/109,046.02 = 45,038.12/x
  3. Step 3: Cross multiply
    79,021.64x = 109,046.02 × 45,038.12
  4. Step 4: Simplify right side
    79,021.64x = 4,911,227,734.28
  5. Step 5: Solve for x
    x = 4,911,227,734.28/79,021.64
  6. Step 6: Final answer
    x = 62,150.42

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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.