Home / 79,347.95-109,530.65-53,865.71

Finding the Fourth Proportional to 79,347.95, 109,530.65 and 53,865.71

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Solution

The fourth proportional to 79,347.95, 109,530.65 and 53,865.71 is: 74,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.95 : 109,530.65 = 53,865.71 : x
  2. Step 2: Convert to fraction form
    79,347.95/109,530.65 = 53,865.71/x
  3. Step 3: Cross multiply
    79,347.95x = 109,530.65 × 53,865.71
  4. Step 4: Simplify right side
    79,347.95x = 5,899,945,412.03
  5. Step 5: Solve for x
    x = 5,899,945,412.03/79,347.95
  6. Step 6: Final answer
    x = 74,355.36

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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.