Home / 75,309.12-103,941.36-43,476.12

Finding the Fourth Proportional to 75,309.12, 103,941.36 and 43,476.12

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Solution

The fourth proportional to 75,309.12, 103,941.36 and 43,476.12 is: 60,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,309.12 : 103,941.36 = 43,476.12 : x
  2. Step 2: Convert to fraction form
    75,309.12/103,941.36 = 43,476.12/x
  3. Step 3: Cross multiply
    75,309.12x = 103,941.36 × 43,476.12
  4. Step 4: Simplify right side
    75,309.12x = 4,518,967,040.32
  5. Step 5: Solve for x
    x = 4,518,967,040.32/75,309.12
  6. Step 6: Final answer
    x = 60,005.57

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1.5x scale

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.