Home / 75,140.64-103,695.60-41,607.84

Finding the Fourth Proportional to 75,140.64, 103,695.60 and 41,607.84

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Solution

The fourth proportional to 75,140.64, 103,695.60 and 41,607.84 is: 57,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,140.64 : 103,695.60 = 41,607.84 : x
  2. Step 2: Convert to fraction form
    75,140.64/103,695.60 = 41,607.84/x
  3. Step 3: Cross multiply
    75,140.64x = 103,695.60 × 41,607.84
  4. Step 4: Simplify right side
    75,140.64x = 4,314,549,933.50
  5. Step 5: Solve for x
    x = 4,314,549,933.50/75,140.64
  6. Step 6: Final answer
    x = 57,419.66

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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.