Home / 75,158.48-103,718-43,326.72

Finding the Fourth Proportional to 75,158.48, 103,718 and 43,326.72

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Solution

The fourth proportional to 75,158.48, 103,718 and 43,326.72 is: 59,790.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,158.48 : 103,718 = 43,326.72 : x
  2. Step 2: Convert to fraction form
    75,158.48/103,718 = 43,326.72/x
  3. Step 3: Cross multiply
    75,158.48x = 103,718 × 43,326.72
  4. Step 4: Simplify right side
    75,158.48x = 4,493,760,744.96
  5. Step 5: Solve for x
    x = 4,493,760,744.96/75,158.48
  6. Step 6: Final answer
    x = 59,790.47

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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.