Home / 75,139.64-103,692.52-43,308.26

Finding the Fourth Proportional to 75,139.64, 103,692.52 and 43,308.26

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Solution

The fourth proportional to 75,139.64, 103,692.52 and 43,308.26 is: 59,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.64 : 103,692.52 = 43,308.26 : x
  2. Step 2: Convert to fraction form
    75,139.64/103,692.52 = 43,308.26/x
  3. Step 3: Cross multiply
    75,139.64x = 103,692.52 × 43,308.26
  4. Step 4: Simplify right side
    75,139.64x = 4,490,742,616.22
  5. Step 5: Solve for x
    x = 4,490,742,616.22/75,139.64
  6. Step 6: Final answer
    x = 59,765.29

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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.