Home / 75,087.09-103,442.13-52,384.86

Finding the Fourth Proportional to 75,087.09, 103,442.13 and 52,384.86

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Solution

The fourth proportional to 75,087.09, 103,442.13 and 52,384.86 is: 72,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,087.09 : 103,442.13 = 52,384.86 : x
  2. Step 2: Convert to fraction form
    75,087.09/103,442.13 = 52,384.86/x
  3. Step 3: Cross multiply
    75,087.09x = 103,442.13 × 52,384.86
  4. Step 4: Simplify right side
    75,087.09x = 5,418,801,498.15
  5. Step 5: Solve for x
    x = 5,418,801,498.15/75,087.09
  6. Step 6: Final answer
    x = 72,166.89

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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.