Home / 79,901.28-110,307.96-48,078

Finding the Fourth Proportional to 79,901.28, 110,307.96 and 48,078

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Solution

The fourth proportional to 79,901.28, 110,307.96 and 48,078 is: 66,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,901.28 : 110,307.96 = 48,078 : x
  2. Step 2: Convert to fraction form
    79,901.28/110,307.96 = 48,078/x
  3. Step 3: Cross multiply
    79,901.28x = 110,307.96 × 48,078
  4. Step 4: Simplify right side
    79,901.28x = 5,303,386,100.88
  5. Step 5: Solve for x
    x = 5,303,386,100.88/79,901.28
  6. Step 6: Final answer
    x = 66,374.23

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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.