Home / 79,268.02-109,390.78-45,281.02

Finding the Fourth Proportional to 79,268.02, 109,390.78 and 45,281.02

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Solution

The fourth proportional to 79,268.02, 109,390.78 and 45,281.02 is: 62,488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.02 : 109,390.78 = 45,281.02 : x
  2. Step 2: Convert to fraction form
    79,268.02/109,390.78 = 45,281.02/x
  3. Step 3: Cross multiply
    79,268.02x = 109,390.78 × 45,281.02
  4. Step 4: Simplify right side
    79,268.02x = 4,953,326,097.00
  5. Step 5: Solve for x
    x = 4,953,326,097.00/79,268.02
  6. Step 6: Final answer
    x = 62,488.33

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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.